CLEMENT OF ROME:
You brought into being the everlasting structure of the world by what you did. You, Lord, made the earth. You who are faithful in all generations, righteous in judgment, marvelous in strength and majesty, wise in creating, prudent in making creation endure, visibly good, kind to those who trust in you.
AUGUSTINE:
God by his grace takes away the stony heart from unbelievers and forestalls merit in people of good will in such a way that their will is prepared by what goes before grace, but that grace is not given through some merit of human will.