(3.) He must be to eternity, because there is no one superior to him, at whose will he exists, that can deprive him of his being and glory.
(4.) He cannot will his own destruction, or non-existence, for that is contrary to the universal nature of things; since no being can desire to be less perfect than it is, much less can any one will or desire his own annihilation; especially no one, who is possessed of blessedness, can will the loss thereof, for that is incongruous with the nature of it, as being a desirable good, therefore God cannot will the loss of his own blessedness; and since his blessedness is inseparably connected with his being, he cannot cease to be, from an act of his own will: if therefore he cannot cease to be, from any necessity of nature, or from the will of another, or from an act of his own will, he must be to eternity.
Moreover, the eternity of God may be proved from his other perfections, since one of the divine perfections infers the other. As,
1. From his immutability; he is unchangeable in his being, therefore he is so in all his perfections, and consequently must be always the same, from everlasting to everlasting, and not proceed from a state of non-existence to that of being, which he would have done, had he not been from everlasting, nor decline from a state of being to that of non-existence, which he would be supposed to do, were he not to everlasting: either of these is the greatest change that can be supposed, and therefore inconsistent with the divine immutability.
2. He is the first cause, and the ultimate end of all things, therefore he must be from eternity, and remain the fountain of all blessedness to eternity.
3. He could not be almighty, or infinite in power, if he were not eternal; for that being, which did not always exist, once could not act, to wit, when it did not exist; or he that may cease to be, may, for the same reason, be disabled from acting; both which are inconsistent with Almighty power.
4. If he were not eternal, he could not, by way of eminency be called the living God, as he is, Jer. x. 10. or said to have life in himself, John v. 26. for both these expressions imply his necessary existence, and that argues his eternity.
3. God’s eternal duration is without succession, as well as without beginning and end, that it is so, appears,
(1.) Because, as was hinted but now, it is unchangeable, since all successive duration infers a change. Thus the duration of creatures, which is successive, is not the same one moment as it will be the next; every moment adds something to it; now this cannot be said of God’s duration. Besides, successive duration implies a being, what we were not, in all respects before, and a ceasing to be what we were, and so it is a kind of continual passing from not being to being, which is inconsistent with the divine perfections, and, in particular, with his unchangeable duration. The Psalmist, speaking of God’s eternal duration, expresses it by the immutability thereof, Thou art the same, and thy years shall have no end, Psal. cii. 27.; and the apostle, speaking concerning this matter, says, He is the same yesterday, to day, and forever, Heb. xiii. 8.
(2.) Successive duration is applicable to time; and the duration of all creatures is measured, and therefore cannot be termed infinite; it is measured by its successive parts: thus a day, a year, an age, a million of ages, are measured by the number of moments, of which they consist; but God’s duration is unmeasured, that is, infinite, therefore it is without succession, or without those parts of which time consists.[[49]]