Psalm 144 is a late, markedly 'anthological' text. On account of the use made in it of Psalm 33, vv. 12-15 can be assumed to be an integral part of the psalm; they are the 'new song' which is announced in v. 9. The deliverance from foreign rule, prayed for in the middle part of the psalm, is a condition for the welfare pictured in the final verses and linked with David in prophetic texts (see esp. Ez 34:23f.). In this deliverance the speaker, presumably of Davidic descent, credits himself with a central role.