Psalm 13-18 (The Daily Walk Bible).
Once again, I like the synopsis: “Today, as in David’s day, believers in God face many challenges to their faith, both from their own fearful hearts (Psalm 13) and from those who foolishly deny God’s existence (14). The answer? Walking in fellowship with God (15), being sustained by the promises of God (16), and drawing upon God’s ever available resources (17–18).”
The superscriptions are actually in the Hebrew text. So when we read “he sang this song to the Lord on the day the Lord rescued him from all his enemies and from Saul,” it gives us some of the backstory and we can understand it better. Psalm 18 isn’t just a generic thank you for God’s protection, it’s about something very specific. That may help us if we use the Psalm as our own inspiration for prayer.
Psalm 16:8-11 is Messianic and is used in Acts 2:25-32, and Acts 13:34-37.