New Defender's Study Bible Notes
31:5 commit my spirit. These words were quoted by Christ on the cross (Luke 23:46), and also by Stephen as he was being stoned (Acts 7:59).
31:6 I have hated. Believers should love their personal enemies (Matthew 5:44), but it is appropriate to hate those that hate God—not with personal animosity, of course, but with that sorrowing hatred which must characterize a Holy God who cannot look on iniquity (Habakkuk l:13). Note Psalm 139:21-22.
31:6 lying vanities. These entities are idols, which are foolishly worshipped as “gods” by those who reject the true God of creation. Note Habakkuk 2:18-20.
31:24 be of good courage. This encouraging exhortation was often used in preparation for battle (e.g., Joshua 1:7). It is appropriate for our very real spiritual battle as well.
Psalm 32 (title) Maschil. This is the first of thirteen maschil psalms (Psalm 32, 42, 44, 45, 52, 53, 54, 55, 74, 78, 88, 89, 142). “Maschil” seems to mean an emotionally contemplative song.