One of the most precious implications of this confidence in God’s inviolable sovereign will is that it provides the foundation of the “new covenant” hope for the holiness without which we will not see the Lord (Heb. 12:14). In the old covenant, the law was written on stone and brought death when it met with the resistance of unrenewed hearts. But the new covenant promise is that God will
not let his purposes for a holy people shipwreck on the weakness of human will.
From the book "Does God Desire All to Be Saved?"