What does Psalm 32:9 mean?
There is debate among scholars as to the "voice" used here. One interpretation is that God directly speaks these words. The other is that the words are presented from the perspective of David. In either case, the advice is sound, and the application is the same. The promise given here extends to everyone who faithfully submits to godly wisdom (Proverbs 1:7; 3:1–6). A major theme of this Psalm has been the misery which God inflicts (Revelation 3:19) on those who refuse to acknowledge their sin (Psalm 32:1–4). This corresponds to the coarse methods used to control unreasoning animals, such as bits and bridles.When David desired Bathsheba and committed adultery with her, he acted as senseless and out of control as an unbroken horse or mule. His animal-like behavior in the murder of Bathsheba's husband also showed that he was disobedient and out of control. Isaiah 53:6 compares disobedient people to sheep that have gone astray. To restore David, the Lord chastened him and convicted him of his moral failure. Chastening is an indicator of the Lord's faithful love (Hebrews 12:6). Without chastening, an unruly believer would continue sinning and forfeit the Lord's blessings.
Psalm 32:8–9 is interpreted differently by various scholars. These could be seen as the words of God, speaking to David and others willing to confess their sins. Or they could be David's own words as he applies his experience with confession (Psalm 32:1–2; Psalm 51:1) through the role of a teacher. In either case, these contain good advice and warn against reacting negatively to good counsel. The psalm has so far praised the Lord's forgiveness and protection (Psalm 32:5–7). Now these verses include a promise and a prohibition.
This psalm follows a progression of David's own experience: from the pressure of resisting confession, to the relief of being forgiven, to a renewed appreciation of God's graciousness for His people. David notes that being forgiven of sin is a great blessing, and those who resist repentance are delaying that restoration. He reflects on his own experience with stubbornness and encourages all people to seek God in sincerity.