It is plain how greatly ignorance of this principle detracts from the glory of God, and impairs true humility. But though thus necessary to be known, Paul declares that it cannot be known unless God, throwing works entirely out of view, elect those whom he has predestined. His words are, “Even so then at this present time also, there is a remnant according to the election of grace. And if by grace, then it is no more of works: otherwise grace is no more grace. But if it be of works, then it is no more grace: otherwise work is no more work,”

— Institutes of the Christian Religion by John Calvin