Be exalted, Yahweh, in your strength

Possible meanings are 1) "Yahweh, show us that you are very strong" or 2) "Yahweh, because you are strong we will exalt you"

we will sing and praise your power

The words "sing" and "praise" share similar meanings. Here the word "power" represents God and his power. AT: "with singing we will praise you because you are powerful" (See: rc://en/ta/man/translate/figs-doublet and rc://en/ta/man/translate/figs-metonymy)