From Jonathan Edwards (1703-1758) in his book, God’s Sovereignty in the Salvation of Men:
Godliness is no cause for glorying, except in God., The Bible says, “No one may boast before Him. It is because of him that you are in Christ Jesus, who has become for us wisdom from God-that is, our righteousness, holiness and redemption. Therefore, as it is written: ‘Let him who boasts boast in the Lord” (1 Corinthians 1:29-31). No one, by any means, in any degree are to attribute their godliness, their safe and happy state and condition, to any natural difference between them and other men, or to any strength or righteousness of their own. They have no reason to exalt themselves in the least degree; but God is the being whom they should exalt. They should exalt God the Father, who, before they were born, and even before the world was created, chose them in Christ, who then set His love on them, and gave them salvation.
HT: Ben Terry