en_tn/1ch/21/08.md

take away your servant's guilt

This is an idiom. Forgiveness is here spoken of as having guilt taken away. Alternate translation: "forgive me" (See: rc://en/ta/man/jit/figs-idiom)

your servant's guilt

David refers to himself as God's servant. Alternate translation: "my guilt" (See: rc://en/ta/man/jit/figs-123person)