Let them praise the Name of the Lord. Frequent changes of person, when no doubt can arise as to the meaning, are a sort of Hebrew idiom. They give liveliness and variety. For he commanded, and they were created (Genesis 1:3, Genesis 1:6, Genesis 1:9, Genesis 1:11, Genesis 1:14, Genesis 1:15, etc.
). All creation sprang into being at the word of God (Psalms 33:8).