His angels

Yahweh has established his throne in the heavens. His kingdom rules over all. Praise Yahweh, you angels of his, who are mighty in strength, who fulfill his word, obeying the voice of his word. Praise Yahweh, all you armies of his, you servants of his, who do his pleasure.

Psalm 103:19-21

The psalmist calls on the angels of Yahweh, mighty in strength, who fulfill his word, to bless him.