Adam Clarke's Commentary on the Bible

Verse 10 (Ephesians 2:10)

For we are his workmanship - So far is this salvation from being our own work, or granted for our own works' sake, that we are ourselves not only the creatures of God, but our new creation was produced by his power; for we are created in Christ Jesus unto good works. He has saved us that we may show forth the virtues of Him who called us from darkness into his marvelous light. For though we are not saved for our good works, yet we are saved that we may perform good works, to the glory of God and the benefit of man.

Which God hath before ordained - Οἱς προητοιμασες· For which God before prepared us, that we might walk in them. For being saved from sin we are made partakers of the Spirit of holiness; and it is natural to that Spirit to lead to the practice of holiness; and he who is not holy in his life is not saved by the grace of Christ. The before ordaining, or rather preparing, must refer to the time when God began the new creation in their hearts; for from the first inspiration of God upon the soul it begins to love holiness; and obedience to the will of God is the very element in which a holy or regenerated soul lives.

- Adam Clarke's Commentary on the Bible