What does Psalm chapter 40 mean?
David experienced danger many times in his life, often as threats from men who marked him out, specifically, for death. In those moments, he prayed to God and was rescued. In some moments, the danger seemed so dire that David saw no way out—like a person trapped in a deep, slimy hole with no escape. Poetically, David describes God saving him from that fate, resulting both in praise and an example from which others can learn (Psalm 40:1–3).Old Testament books such as Psalms and Proverbs often extol the value of godly wisdom (Proverbs 1:7; Psalm 19:7–10). David echoes those themes here, warning against arrogance and lies. He also praises God for the many examples of mercy shown to His people, more than any one person could tell (Psalm 40:4–5).
Psalm 40:6–7 is cited in the book of Hebrews (Hebrews 10:5–9). In that text, the passage is used to explain how God's ultimate plan for humanity involved the obedient use of a specially prepared body: that of Jesus Christ. Hebrews quotes the Septuagint Greek translation, resulting in slightly different phrasing than the Old Testament Hebrew. David notes that God's primary desire is for obedience, and that the Lord had specifically created him with an ability to hear and obey. In response, David plans to honor God's will as explained in the written Word of God (Psalm 40:6–8).
Many of the psalms were written by David—he was not at all afraid to share his praise for God (Psalm 40:9–10).
After celebrating what God had done, David then turns to what God will do. In part, that includes forgiving David of his sins. Despite all his success, David was not ignorant to his own need for mercy. This prayer also asks God to continue to save him from his enemies. The phrasing here asks that those who mockingly hate David will be devastated by their own shame. Maintaining the attitude of humility, David praises God in advance for His response and celebrates the joy which should come naturally to all believers (Psalm 40:11–17).