Charles Ellicott Commentary Psalms 144:9

"I will sing a new song unto thee, O God: Upon a psaltery of ten strings will I sing praises unto thee." — Psalms 144:9 (ASV)

See Psalms 33:2-3.

O God. —The only instance of Elohim in the last two books of the psalter with the exception of Psalms 108:0, which is a compilation from two older songs.