This psalm of praise is the last in this collection of the psalms of David (Psalms 138–145). Praise continues in the last five psalms (Psalms 146–150).
This psalm celebrates the Lord as the King of all (Psalm 145:1–3, 10–13). God's actions show his royal qualities (Psalm 145:4–7). He cares for all creatures (Psalm 145:14–17) and for those who fear him (145:18–20).