Psalms 28:8 - Matthew Poole's English Annotations on the Holy Bible

Their strength, i.e. the strength of his people, mentioned in the next verse; the relative being put before the antecedent, which is left to be gathered out of the following matter, as it is Numbers 24:17 Psalms 87:1. Or, his strength; for the Hebrew affix mo, which commonly is plural, is sometimes taken singularly; of which see my Latin Synopsis here, and on Isaiah 53:8. And his, i.e. of his anointed, as the next clause explains it. Or the words may be thus rendered, Strength is or belongs to thee Lord. Heb. The Lord, strength is his, or to him. It is a Hebrew pleonasm. The saving strength, Heb. the strength of the preservations, or deliverances, or victories, or salvations, i.e. he by whose strength alone he hath got these victories, &c. Of his anointed, i.e. of me, whom he hath anointed to be king, whom therefore he will defend; he speaks of himself in the third person, which is usual in the Hebrew tongue.