Psalms 40:17

The Lord’s "living sacrifice," i.e., David, cried out again, in conclusion, that the One to whom he looked for help would save him soon (cf. Psalms 35:10; Psalms 37:14). Psalms 40:13-17 are very similar to Psalms 70.

We who are believers should present ourselves as living sacrifices to the Lord with a willing heart because of His grace to us. Having done so we can appeal to Him for help against our spiritual enemies and expect His aid. Nevertheless we should base our appeal on what will glorify God. [Note: See Allen, Lord of . . ., pp. 43-56.]