The call to heaven and earth to take their part in the great Hallelujah
Psalm 148 calls first on heaven, and all in it, to take their part in the great Hallelujah, and praise Jehovah who had created and sustains them in their place; and then on the earth, with all in it, to join in praising Him whose name alone is excellent, and His glory above the earth and heaven, but who exalts the horn of His people, the praise of His saints (the godly ones we have seen throughout, but who now are fully Israel), a people near to Him. The great Creator whom heaven and earth must praise is the God of Israel, and Israel His people.