Before the mountains were brought forth, or ever thou hadst formed the earth and the world, even from everlasting to everlasting, thou art God.

Before the mountains were made, or the earth and the world was formed; from eternity and to eternity thou art God.

Before the mountains were brought forth, and thou hadst formed the earth and the world, even from eternity to eternity thou art God.

Before mountains were brought forth, And Thou dost form the earth and the world, Even from age unto age Thou art God.

Before the mountains were made, before you had given birth to the earth and the world, before time was, and for ever, you are God.

Before the mountains were brought forth. Moses designs to set forth some high and hidden mystery, and yet he seems to speak feebly, and, as it were, in a puerile manner. For who does not know that God existed before the world? This we grant is a truth which all men admit; but we will scarcely find one in a hundred who is thoroughly persuaded that God remains unchangeably the same. God is here contrasted with created beings, who, as all know, are subject to continual changes, so that there is nothing stable under heaven. As, in a particular manner, nothing is fuller of vicissitude than human life, that men may not judge of the nature of God by their own fluctuating condition, he is here placed in a state of settled and undisturbed tranquillity. Thus the everlastingness of which Moses speaks is to be referred not only to the essence of God, but also to his providence, by which he governs the world. Although he subjects the world to many alterations, he remains unmoved; and that not only in regard to himself, but also in regard to the faithful, who find from experience, that instead of being wavering, he is steadfast in his power, truth, righteousness, and goodness, even as he has been from the beginning. This eternal and unchangeable steadfastness of God could not be perceived prior to the creation of the world, since there were as yet no eyes to be witnesses of it. But it may be gathered a posteriori; for while all things are subject to revolution and incessant vicissitude, his nature continues always the same. There may be also here a contrast between him and all the false gods of the heathen, who have, by little and little, crept into the world in such vast numbers, through the error and folly of men. But I have already shown the object which Moses has in view, which is, that we mistake if we measure God by our own understanding; and that we must mount above the earth, yea, even above heaven itself, whenever we think upon him.

Before the mountains were brought forth - Before the earth brought forth or produced the mountains. In the description of the creation it would be natural to represent the mountains as the first objects that appeared, as emerging from the waters; and, therefore, as the "first" or "most ancient" of created objects. The phrase, therefore, is equivalent to saying, Before the earth was created. The literal meaning of the expression, "were brought forth," is, in the Hebrew, "were born." The mountains are mentioned as the most ancient things in creation, in Deuteronomy 33:15. Compare Genesis 49:26; Habakkuk 3:6.
Or ever thou hadst formed - literally, "hadst brought forth." Compare Job 39:1.
The earth and the world - The word "earth" here is used to denote the world as distinguished either from heaven Genesis 1:1, or from the sea Genesis 1:10. The term "world" in the original is commonly employed to denote the earth considered as "inhabited," or as capable of being inhabited - a dwelling place for living beings.
Even from everlasting to everlasting - From duration stretching backward without limit to duration stretching forward without limit; that is, from eternal ages to eternal ages; or, forever.
Thou art God - Or, "Thou, O God." The idea is, that he was always, and ever will be, God: the God; the true God; the only God; the unchangeable God. At any period in the past, during the existence of the earth, or the heavens, or before either was formed, he existed, with all the attributes essential to Deity; at any period in the future - during the existence of the earth and the heavens, or beyond - far as the mind can reach into the future, and even beyond that - he will still exist unchanged, with all the attributes of Deity. The creation of the universe made no change in him; its destruction would not vary the mode of his existence, or make him in any respect a different being. There could not be a more absolute and unambiguous declaration, as there could not be one more sublime, of the eternity of God. The mind cannot take in a grander thought than that there is one eternal and immutable Being.

Before the mountains were brought forth - The mountains and hills appear to have been everlasting; but as they were brought forth out of the womb of eternity, there was a time when they were not: but Thou hast been ab aeternitate a parte ante, ad aeternitatem a parte post; fram the eternity that is past, before time began; to the eternity that is after, when time shall have an end. This is the highest description of the eternity of God to which human language can reach.

Before the (c) mountains were brought forth, or ever thou hadst formed the earth and the world, even from everlasting to everlasting, thou [art] God.
(c) You have chosen us to be your people before the foundations of the world were laid.

Before the mountains were brought forth,.... Or "were born" (b), and came forth out of the womb and bowels of the earth, and were made to rise and stand up at the command of God, as they did when he first created the earth; and are mentioned not only because of their firmness and stability, but their antiquity: hence we read of the ancient mountains and everlasting hills, Genesis 49:26, for they were before the flood, and as soon as the earth was; or otherwise the eternity of God would not be so fully expressed by this phrase as it is here, and elsewhere the eternity of Christ, Proverbs 8:25, or "ever thou hadst formed the earth and the world"; the whole terraqueous globe, and all the inhabitants of it; so the Targum; or "before the earth brought forth; or thou causedst it to bring forth" (c) its herbs, plants, and trees, as on the third day:
even from everlasting to everlasting, thou art God; and so are his love, grace, and mercy towards his people, and his covenant with them; and this is as true of Jehovah the Son as of the Father, whose eternity is described in the same manner as his; see Proverbs 8:22, and may be concluded from his name, the everlasting Father; from his having the same nature and perfections with his Father; from his concern in eternal election, in the everlasting covenant of grace, and in the creation of all things; and his being the eternal and unchangeable I AM, yesterday, today, and for ever, is matter of comfort to his people.
(b) "nascerentur", Pagninus, Montanus, Tigurine version, Michaelis; so Ainsworth; "geniti essent", Piscator, Gejerus. (c) "antequam parturiret terra", Syr. "aut peperisses terram", Piscator, Amama.

brought forth [and] formed--both express the idea of production by birth.

Thou - Thou hadst thy power, and all thy perfections, from all eternity.