Psalms 40:7-8

Psalms 40:7-8

[7] Then said  I, Lo, I come:  in the volume  of the book  it is written  [8] I delight  to do  thy will,  O my God:  yea, thy law  is within  my heart. 

What does Psalms 40:7-8 Mean?

Contextual Meaning

Because God had been so good to David, the psalmist yielded his life as a living sacrifice ( Romans 12:1-2). As the Lord"s anointed king, David was responsible to follow the directions handed on to him in the scroll of the Mosaic Law. Because God had captured his affections, David could say the Law was in his heart, not just in his hands. He delighted to do God"s will rather than just doing it out of obligation.
In Hebrews 10:5-7, the writer of that epistle quoted Psalm 40:6-8 concerning Jesus Christ"s attitude at His incarnation. The sacrifices of the Mosaic system could never satisfy God"s high demands. They only removed sin temporarily and expressed worship superficially. The offering that fully satisfied God was the willing self-sacrifice of the sinless Son of Man. Jesus Christ offered Himself to God as David did, as he expressed in this psalm.