There is a moment, standing at the rim of a canyon or beneath a mountain that fills the whole sky, when something in the chest goes quiet. Dovid HaMelech gave that silence its words in Tehillim: mah rabu maasecha Hashem, “how manifold are Your works, Hashem; You made them all with wisdom.” Judaism does not leave such a moment to a sigh. It hands us a bracha, oseh maaseh bereishis — “Who makes the work of Creation” — to be said over mountains, towering hills, great rivers, and sweeping deserts that stop a person in his tracks. To bless Hashem as the Maker of these wonders is to remember that the world around us is His creation and His handiwork.

For more than two centuries, Rabbi Meir Baal Haness Charities has helped preserve and share the Torah traditions, tefillos, and brachos that connect Jews to Hashem while supporting the needy of Eretz Yisroel. In this guide, we will explore when Oseh Maaseh Bereishis is recited, what natural wonders qualify for the bracha, and the halachic principles behind this unique expression of gratitude and awe.

Understanding Oseh Maaseh Bereishis

Oseh maaseh bereishis (“Who makes the work of Creation”) is one of the birchos hare’iyah — blessings recited upon seeing certain noteworthy sights. The Mishnah in Berachos 54a lists the natural features for which this bracha is recited: harim (mountains), geva’os (hills), yamim (seas), neharos (rivers), and midbaros (deserts). These are the great, enduring landmarks of the natural world. When a person encounters one of them in a way that inspires genuine awe or appreciation, he blesses Hashem as the One who continually makes and sustains creation, using the present tense: oseh maaseh bereishis.

It is also helpful to distinguish this bracha from other birchos hare’iyah recited over different natural phenomena. Dramatic and temporary displays of nature — such as comets and shooting stars (zikin), earthquakes (zeva’os), lightning (berakim), thunder (re’amim), and powerful winds (ruchos) — are associated primarily with the blessing Baruch… shekocho ugevurato malei olam (“Whose power and might fill the world”). The Mishnah places these phenomena under that blessing, and Rambam (Hilchos Berachos 10:14) and Shulchan Aruch (Orach Chaim 227:1) note that oseh maaseh bereishis may be recited over them as well.

Similarly, the open ocean is commonly treated under its own bracha, she’asah es hayam hagadol, which is discussed in our dedicated article on seeing the sea. This article focuses on oseh maaseh bereishis as it relates to the enduring features of the landscape — mountains, hills, rivers, deserts, and similar manifestations of creation whose very permanence testifies to their Creator.

The History and Origins of Oseh Maaseh Bereishis

The blessing’s foundation is the Mishnah in Berachos 54a, where Chazal — preserving and transmitting the mesorah they received — assigned distinct brachos to distinct categories of natural wonder. The Gemara that follows develops the details, and the Rambam gathers them in Hilchos Berachos, chapter 10 — the power-type phenomena in 10:14 and the landscape features in 10:15 — where he lays out which sight calls for which blessing. The Tur and the Shulchan Aruch, in Orach Chaim 228, give the practical law its standing form, and the Acharonim refine it.

A central theme that the poskim draw out is the deliberate pairing of two blessings for two kinds of awe. The calm, abiding works are blessed with oseh maaseh bereishis, praising Hashem as Creator of settled order, while the sudden, fearsome forces are blessed primarily with shekocho ugevurato malei olam, praising Him as the One whose strength fills the world even through upheaval. There are differences of practice across communities in how readily the bracha is said today, and these are recorded as variations in minhag and in halachic caution, not as conflicts; the disputes among the poskim are machlokes l’sheim Shamayim, each weighing how to honor both the obligation to bless and the gravity of using Hashem’s Name.

The Bracha: Hebrew, Transliteration, Translation

The blessing on the enduring works of creation is a single line:

A fitting verse of praise on beholding such a sight is mah rabu maasecha Hashem, kulam b’chochmah asisa, male’ah ha’aretz kinyanecha — “How manifold are Your works, Hashem; You made them all with wisdom; the earth is full of Your creations” (Tehillim 104:24). That verse beautifully expresses awe at creation, though it is not the text of the bracha itself:

מָה רַבּוּ מַעֲשֶׂיךָ ה’, כֻּלָּם בְּחׇכְמָה עָשִׂיתָ; מָלְאָה הָאָרֶץ קִנְיָנֶךָ

For separate phenomena, the wording differs and is not the subject here: storms and comets are blessed with shekocho ugevurato malei olam (see the Thunder & Lightning article), and the open ocean with she’asah es hayam hagadol (see the Ocean article). Keeping the categories clean is part of saying the right bracha at the right moment.

What “Mah Rabu Maasecha Hashem” Means: A Deeper Look

The bracha is short; the seeing behind it is vast. Four ideas carry its weight.

“Oseh maaseh bereishis” — makes, not made. As in Birkas HaChama, the verb is present and ongoing. The mountain in front of you is not a relic of an act finished long ago; it is being made now, sustained this instant by the will of its Maker. Wonder is the proper human response to encountering the infinite within the finite, and this bracha is wonder given a destination — it does not stop at the mountain but travels through it to Hashem.

“Mah rabu maasecha Hashem” — how manifold are Your works. Dovid HaMelech’s phrase, the heart of this page, is not merely admiration of quantity. The verse continues kulam b’chochmah asisa, “You made them all with wisdom”: the awe is at the intelligence woven through creation. To say mah rabu is to read the landscape as authored, not accidental — to see chochmah where a tourist sees only scenery.

“Mal’ah ha’aretz kinyanecha” — the earth is full of Your possessions. The same psalm declares the world Hashem’s property, and this is where the bracha turns ethical. If the earth and its fullness are His acquisitions, then what I hold is held in trust, and the open-handedness of the Owner becomes the model for mine. Part of a Jew’s task is to make that hidden Divine ownership visible in the physical world, and tzedakah is one of the clearest ways it is revealed.

The thirty-day renewal of wonder. Halacha does not let a person bless the same familiar mountain every day; the bracha is reserved for the fresh encounter, the sight not seen for thirty days or seen anew. These seeing-blessings exist to keep a Jew’s awareness awake, so that the world never collapses into background. We are built to stop noticing; the bracha is built to make us notice again.

The Halacha: When This Bracha Is Said

The trigger is the sight itself, encountered freshly. One recites oseh maaseh bereishis on seeing a mountain, a tall hill, a great river, a desert, or a striking body of water of the sort that arouses genuine awe; the poskim narrow the rule to especially notable features, not every roadside slope (Shulchan Aruch, Orach Chaim 228:2–3 with Mishnah Berurah 228:5). The blessing is governed by an interval: one does not repeat it on a sight one regularly sees, and the common standard is that thirty days must pass before the same sight occasions the bracha again (Rambam, Hilchos Berachos 10:15; see also Ateres Zekenim on Orach Chaim 228:1). A new, different mountain or river one has not seen before can be blessed even within thirty days.

Several practical questions recur. The first is which bracha applies to which sight, since a person standing where mountains, a river, and the sea all meet must sort them: the land features take oseh maaseh bereishis, the open ocean takes she’asah es hayam hagadol, and a sudden storm overhead is blessed primarily with shekocho ugevurato malei olam. The second is whether to recite the blessing with the full Divine Name. Because the qualifying threshold of awe is debated, the poskim are cautious in doubtful cases on the principle of safek berachos lehakel (a doubtful blessing is treated leniently): a clearly awe-inspiring sight is blessed in full, while a doubtful case should be clarified with a rav. A person who wants to say the bracha properly on a trip should learn the categories in advance and ask a rav where the case is genuinely doubtful.

Match the bracha to the sight.

Mountains, hills, great rivers, and deserts → oseh maaseh bereishis.

The open ocean → she’asah es hayam hagadol.

Lightning, thunder, comets, and earthquakes → primarily shekocho ugevurato malei olam.

When the level of awe is in doubt, the poskim are cautious because of safek berachos lehakel; clarify the case with a rav.

The Spiritual Power of Tefillah and Tzedakah

The verse at the center of this page already contains the bridge: mal’ah ha’aretz kinyanecha — the earth is full of Hashem’s possessions. Once a person truly sees that the mountains and rivers and the silver in his pocket all belong to the same Owner, giving stops feeling like loss and starts feeling like stewardship.

Chazal make that same connection explicit. The Gemara teaches that “great is tzedakah, for it brings the redemption near” (Bava Basra 10a), and Mishlei says, u-tzedakah tatzil mimaves — “tzedakah saves from death.” Rambam, in Hilchos Matnos Aniyim 10:7, describes the highest form of giving as strengthening a person with a gift, a loan, a partnership, or work, so that he will not need to ask from others. Tefillah and tzedakah work together: the blessing lifts our eyes to the Maker, and the giving turns that lifted gaze into action in His world.

This is the spirit of Rabbi Meir Baal Haness Charities. In the well-known Gemara about Rabbi Meir, we find the cry “Elaha d’Meir aneini,” and later Jewish custom came to associate giving in his merit with support for the poor of Eretz Yisroel. The Jew who has just stood before a mountain and named its Maker is the very Jew most ready to give. Let the wonder become generosity: the same wisdom you praised in the landscape — kulam b’chochmah asisa — is the wisdom you imitate when you provide, with care and dignity, for a family that has nothing. Giving in this spirit is an act of emunah and chesed, never a bargain, and it lets the abundance you admired flow toward those who need it.

Give Tzedakah in the Merit of Rabbi Meir Baal Haness The earth is full of Hashem’s possessions, and so are our hands when we open them. Turn the wonder of mah rabu maasecha Hashem into bread for a needy family in Eretz Yisroel.

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About Rabbi Meir Baal Haness Charities

Rabbi Meir Baal Haness Charities, founded in 1799, is one of the oldest and most trusted tzedakah organizations serving the poor of Eretz Yisroel, upholding Rabbi Meir Baal Haness’s legacy that those who give to the needy in his memory find heavenly intercession in their time of need.

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Today it distributes funds to Torah scholars, widows, orphans, and needy families throughout Eretz Yisroel, an unbroken chain of compassion that is a zechus for the giver and for the giver’s family.

Frequently Asked Questions About Oseh Maaseh Bereishis

A mountain says nothing and teaches everything: that there is a Maker, that His wisdom runs through stone and river alike, and that the earth and its fullness were never ours to begin with. To bless Him for it, and then to give, is to answer the wonder honestly. May our eyes stay open to mah rabu maasecha Hashem, and may we always merit to see the hand of Hashem at work in His world.