(1.) From his being a necessary, self-existent being, or, as was before observed, in and of himself, therefore he must be from everlasting; for whatever is not produced is from eternity. Now that God did not derive his being from any one, is evident, because he gave being to all things, which is implied in their being creatures; therefore nothing gave being to him, and consequently he was from eternity.
(2.) If he is an infinitely perfect being, as has been observed before, then his duration is infinitely perfect, and consequently it is boundless, that is to say, eternal: it is an imperfection, in all created beings, that they began to exist, and therefore they are said, in a comparative sense, to be but of yesterday; we must therefore, when we conceive of God, separate this imperfection from him, and so conclude that he was from all eternity.
(3.) If he created all things in the beginning, then he was before the beginning of time, that is, from eternity: thus it is said, In the beginning God created the heaven and the earth, Gen. i. 1. this is very evident, for time is a successive duration, taking its rise from a certain point, or moment, which we call the beginning: now that duration, which was before this, must be from eternity, unless we suppose time before time began, or, which is all one, that there was a successive duration before successive duration began, which is a contradiction. Therefore, if God fixed that beginning to all things, as their Creator, and particularly to time, which is the measure of the duration of all created beings, then it is evident that he was before time, and consequently from eternity.
(4.) This also appears from scripture; as when it is said, The eternal God is thy refuge, and underneath are the everlasting arms, Deut. xxxiii. 27. and when we read of his eternal power and Godhead, Rom. i. 20. and elsewhere, Art not thou from everlasting O Lord, my God? Hab. i. 12. Thy throne is established of old; thou art from everlasting, Psal. xciii. 2. so his attributes and perfections are said to have been from everlasting, The mercy of the Lord is from everlasting to everlasting, Psal. ciii. 17.
And this may be argued from many scripture-consequences: thus, there was an election of persons to holiness and happiness, before the foundation of the world, Eph. i. 4. and Christ, in particular, was fore-ordained to be our Mediator, before the foundation of the world, 1 Pet. i. 20. and set up from everlasting, from the beginning, or ever the earth was, Prov. viii. 23. From hence it follows, that there was a sovereign will that fore-ordained it, and therefore God, whose decree or purpose it was, existed before the foundation of the world, that is, from everlasting.
Moreover, there were grants of grace given in Christ, or put into his hand, from all eternity: thus we read of eternal life, which God promised before the world began, Tit. i. 2. and of our being saved, according to his purpose and grace, given us in Christ Jesus, before the world began, 2 Tim. i. 9. It hence follows, that there was an eternal giver, and consequently that God was from everlasting.
2. God shall be to everlasting; thus it is said, The Lord shall endure forever, Psal. ix. 7. and that he liveth for ever and ever, Rev. iv. 9, 10. and that his years shall have no end, Psal. cii. 27. and the Lord shall reign for ever, Psal. cxlvi. 10. therefore he must endure for ever. Again, it is said, that the Lord keepeth covenant and mercy with them that love him, to a thousand generations, Deut. vii. 9. and he will ever be mindful of his covenant, Psal. cxi. 5. that is, will fulfil what he has promised therein: if his truth shall not fail for ever, then he, who will accomplish what he has spoken, must endure to everlasting.
But this may be farther evinced from the perfections of his nature.
(1.) From his necessary existence, which not only argues, as has been before observed, that he could not begin to be, but equally proves, that he cannot cease to be, or that he shall be to everlasting.
(2.) He is void of all composition, and therefore must be to everlasting; none but compounded beings, viz. such as have parts, are subject to dissolution, which arises from, the contrariety of these parts, and their tendency to destroy one another, which occasions the dissolution of the whole; but God having no parts, as he is the most simple uncompounded being, there can be nothing in him that tends to dissolution, therefore he can never have an end from any necessity of nature. And,