Angels Called upon to Bless Jehovah

Let's turn in our Bibles to Psalm 103. We'll read the whole Psalm. The text tonight is verses 20 and 21. This is the word of God. Bless the Lord, O my soul, and all that is within me. Bless his holy name. Bless the Lord, O my soul, and forget not all his benefits, who forgiveth all thine...