But can those converted to God keep these commandments perfectly?

No. In this life even the holiest have only a small beginning of this obedience. Nevertheless, with earnest purpose they do begin to live not only according to some but to all the commandments of God.

Proofs

• No. In this life even the holiest have only a small beginning of this obedience. (Ecclesiastes 7:20; Romans 7:14–15; 1 Corinthians 13:9; 1 John 1:8)
• Nevertheless, with earnest purpose they do begin to live not only according to some but to all the commandments of God. (Psalm 1:1–2; Romans 7:22–25; Philippians 3:12–16)