But do thou for me, O GOD the Lord, for thy name's sake: because thy mercy is good, deliver thou me.
But do thou for me, O God the Lord, for thy name's sake. Supply to 'do thou for thy name's sake' what is suitable to thy name - i:e., what is suitable to thy manifested character of faithfulness to thy people. Compare Psalms 119:124; Jeremiah 14:7, "do thou it (what is suitable to thy name) for thy name's sake."
Because thy mercy is good, deliver thou me. "Deliver me" explains the parallel "do thou." "Thy mercy" explains "thy name," or manifested character (cf. Psalms 69:16).