Matthew Poole and continuators on Psalms 59:9

9. Because of his strength will I wait upon thee: for God is my defence.

(i. e.) Saul's strength: Because he is too strong for me. Or rather, O my strength, as it is v. 17. And all those Antient and venerable Translators, the LXX, and Chalde, and Vulgar Latin, render it, my Strength. In the Hebrew it is, his Strength, (i. e.) David's. For David speaks of himself in the third Person, as he oft doth. And such sudden Changes of Persons are usual, both in these poetical Books (as hath been noted before) and elsewhere, as Dan 9. 4. Mich. 1. 2.

Marginal references: Heb. my high place.