The Israelites who were present in Jerusalem celebrated the Feast of Unleavened Bread for seven days with great joy, and the Levites and priests praised the LORD day after day, accompanied by loud instruments of praise to the LORD.
KJV
And the children of Israel that were present at Jerusalem kept the feast of unleavened bread seven days with great gladness: and the Levites and the priests praised the LORD day by day, [singing] with loud instruments unto the LORD.
ASV
And the children of Israel that were present at Jerusalem kept the feast of unleavened bread seven days with great gladness; and the Levites and the priests praised Jehovah day by day, singing with loud instruments unto Jehovah.