Chap. 3:Para. 3 Gods Decree in Salvation

We come now to the most controversial part of the chapter where paragraph 3 takes us into the territory of double predestination. ‘By the decree of God, for the manifestation of his glory, some men and angels are predestinated, or foreordained to eternal life through Jesus Christ, to the praise of his glorious grace; others being left to act in their sin to their just condemnation, to the praise of his glorious justice.’ This is the next necessary step in working out the doctrine of God’s plan of all things. We have seen who God is; and in light of who God is His decree must have certain characteristics being eternal, unconditional, immutable, universal and impeccable. Because of this we had to deny certain things last week. We had to show that God could not have done things in a certain way closing the door on middle knowledge. God does not look down the corridors of time to a situation that He has not willed and react to what we would do. Having stated things generally the 1689 is now ready to apply this biblical teaching of God to how God planned salvation, and this brings us face to face with the dreaded doctrine of double predestination.

Source