21 So the children of Israel who were present in Jerusalem kept the feast of unleavened bread for seven days with great joy: and the Levites and the priests gave praise to the Lord day by day, making melody to the Lord with loud instruments. 22 And Hezekiah said kind words to the Levites who were expert in the ordering of the worship of the Lord: so they kept the feast for seven days, offering peace-offerings and praising the Lord, the God of their fathers. 23 And by the desire of all the people, the feast went on for another seven days, and they kept the seven days with joy. 24 For Hezekiah, king of Judah, gave to the people for offerings, a thousand oxen and seven thousand sheep; and the rulers gave a thousand oxen and ten thousand sheep; and a great number of priests made themselves holy. 25 And all the people of Judah, with the priests and the Levites, and those who had come from Israel, and men from other lands who had come from Israel or who were living in Judah, were glad with great joy. 26 So there was great joy in Jerusalem: for nothing like this had been seen in Jerusalem from the time of Solomon, the son of David, king of Israel. 27 Then the priests and the Levites gave the people a blessing: and the voice of their prayer went up to the holy place of God in heaven.

Matthew Henry's Commentary on 2 Chronicles 30:21-27

Commentary on 2 Chronicles 30:21-27

(Read 2 Chronicles 30:21-27)

Many prayers were put up to God with the peace-offerings. In these Israel looked to God as the God of their fathers, a God in covenant with them. There was also abundance of good preaching. The Levites read and explained the Scriptures. Faith cometh by hearing, and true religion preaching has abounded. They sang psalms every day: praising God should be much of our work in religious assemblies. Having kept the seven days of the feast in this religious manner, they had so much comfort in it, that they kept other seven days also. This they did with gladness. Holy duties should be done with holy gladness. And when sinners humble themselves before the Lord, they may expect gladness in his ordinances. Those who taste this happiness will not soon grow weary of it, but will be glad to prolong their enjoyment.