Angels as God's Servants

So, here we see the sovereignty of God. He has established His throne in heaven, and His kingdom rules over all. And so, interestingly, the exhortation that David gives here is to the angels; that they would bless the Lord, because they do excel in strength. They do perform His word. They do this, heeding the voice of His word. David calls them the Lord's hosts. He calls them His ministers who do His pleasure. And so, I am sure, that this is exactly what they do. They bless the Lord for their own ability to do what He commands perfectly. Their boast is not in themselves, but in God who made them and directs them to their responsibilities in perfect wisdom.