NET
5 4,000 are to be gatekeepers; and 4,000 are to praise the Lord with the instruments I supplied for worship.”
Darby
5 and four thousand were doorkeepers; and four thousand praised Jehovah with the instruments which I made, [said David,] to praise [therewith].
KJV
5 Moreover four thousand [were] porters; and four thousand praised the LORD with the instruments which I made, [said David], to praise [therewith].