Isaiah 11:5

Girdle of his loins. Messiah is pictured clothed in garments of righteousness. The figure implies a strict regard for justice and truth, integrity and faithfulness. Messiah is to be the very embodiment of righteousness. In contrast, Antichrist is said to work “with all deceivableness of unrighteousness” (2 Thess. 2:10). The followers of Christ are to wear the same garment of righteousness He wears (see on Matt. 22:11, 12; cf. Isa. 61:10; Rev. 3:18).

Reins. Literally, the “loins,” that part of the body between the lowest, or false, ribs, and the hip bones. In contrast, the word translated “loins” refers to the hips and the small of the back.