The properties of God's decrees:
1. They are eternal. God makes no decrees in time, but they were all from eternity. If the divine decrees were not eternal, God would not be most perfect and unchangeable, but, like weak man, should take new counsels, and would be unable to tell everything that were to come to pass (Eph. 1:4).
2. They are most wise. God cannot properly deliberate or take counsel, as men do; for He sees all things together and at once. Nothing is determined that could have been better determined (Rom. 11:33).
3. They are free. [They depend] on no other, but all flowing from the mere pleasure of His own will. He has made no decrees suspended on any condition without Himself (Rom. 11:34).
4. They are unchangeable. God's decrees are constant; and He by no means alters His purpose, as men do (Psm. 33:1).
5. They are most holy and pure (1 Jn. 1:5).
6. They are effectual. Whatsoever God decrees comes to pass infallibly (Isa. 46.10).
Thomas Boston