TSK · 2 Chronicles 9:11

4,000 are to be gatekeepers; and 4,000 are to praise the LORD with the instruments I supplied for worship.”

A psalm; a song for the Sabbath day. It is fitting to thank the LORD, and to sing praises to your name, O Most High!

and when he had taken the scroll, the four living creatures and the twenty-four elders threw themselves to the ground before the Lamb. Each of them had a harp and golden bowls full of incense(which are the prayers of the saints).