from "ESV Gospel Transformation Bible"
"Here, David focuses on God’s faithfulness to him personally ( 138: 1– 3 , 7– 8 ), which extends, then, to God’s faithfulness to Israel as a whole through whom the nations of the world will one day bow in thanksgiving to Yahweh, the God of Israel (vv. 4– 6 )."
I tried keeping rules and working my head off to please God, and it didn’t work. So I quit being a “law man” so that I could be God’s man. Christ’s life showed me how, and enabled me to do it. I identified myself completely with him. Indeed, I have been crucified with Christ. My ego is no longer central. It is no longer important that I appear righteous before you or have your good opinion, and I am no longer driven to impress God. Christ lives in me. The life you see me living is not “mine,” but it is lived by faith in the Son of God, who loved me and gave himself for me. I am not going to go back on that.
Is it not clear to you that to go back to that old rule-keeping, peer-pleasing religion would be an abandonment of everything personal and free in my relationship with God? I refuse to do that, to repudiate God’s grace. If a living relationship with God could come by rule-keeping, then Christ died unnecessarily.
Peterson, E. H. (2005). The Message: the Bible in contemporary language (Ga 2:19–21). Colorado Springs, CO: NavPress.
