Here "right hand" represents Yahweh's power. Possible meanings are 1) Yahweh's right hand is righteous in that he will always do the right thing. AT: "my righteous power" or 2) Yahweh's right hand is victorious in that he will always succeed in what he does. AT: "my victorious power" (See: [[rc://en/ta/man/translate/figs-metonymy]])