21:1Meaning
The king’s joy is directed toward Yahweh’s strength The verse presents the king as actively celebrating what Yahweh has shown—strength on the king’s behalf. The line repeats the idea of joy with stronger wording: the king rejoices, and he rejoices “greatly.” The cause of joy is also restated: “your strength” and “your salvation,” meaning Yahweh’s effective help and rescue, not the king’s self-made success.
