13 Now many people, a very great assembly, gathered at Jerusalem to keep the Feast of Unleavened Bread in the second month. 14 They arose and took away the altars that were in Jerusalem, and they took away all the incense altars and cast them into the Brook Kidron. 15 Then they slaughtered the Passover lambs on the fourteenth day of the second month. The priests and the Levites were ashamed, and sanctified themselves, and brought the burnt offerings to the house of the Lord. 16 They stood in their place according to their custom, according to the Law of Moses the man of God; the priests sprinkled the blood received from the hand of the Levites. 17 For there were many in the assembly who had not sanctified themselves; therefore the Levites had charge of the slaughter of the Passover lambs for everyone who was not clean, to sanctify them to the Lord. 18 For a multitude of the people, many from Ephraim, Manasseh, Issachar, and Zebulun, had not cleansed themselves, yet they ate the Passover contrary to what was written. But Hezekiah prayed for them, saying, "May the good Lord provide atonement for everyone 19 who prepares his heart to seek God, the Lord God of his fathers, though he is not cleansed according to the purification of the sanctuary." 20 And the Lord listened to Hezekiah and healed the people.

21 So the children of Israel who 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 to the Lord, accompanied by loud instruments. 22 And Hezekiah gave encouragement to all the Levites who taught the good knowledge of the Lord; and they ate throughout the feast seven days, offering peace offerings and making confession to the Lord God of their fathers. 23 Then the whole assembly agreed to keep the feast another seven days, and they kept it another seven days with gladness. 24 For Hezekiah king of Judah gave to the assembly a thousand bulls and seven thousand sheep, and the leaders gave to the assembly a thousand bulls and ten thousand sheep; and a great number of priests sanctified themselves. 25 The whole assembly of Judah rejoiced, also the priests and Levites, all the assembly that came from Israel, the sojourners who came from the land of Israel, and those who dwelt in Judah. 26 So there was great joy in Jerusalem, for since the time of Solomon the son of David, king of Israel, there had been nothing like this in Jerusalem. 27 Then the priests, the Levites, arose and blessed the people, and their voice was heard; and their prayer came up to His holy dwelling place, to heaven.

Matthew Henry's Commentary on 2 Chronicles 30:13-27

Commentary on 2 Chronicles 30:13-20

(Read 2 Chronicles 30:13-20)

The great thing needful in attendance upon God in solemn ordinances, is, that we make heart-work of it; all is nothing without this. Where this sincerity and fixedness of heart are, there may yet be many things short of the purification of the sanctuary. These defects need pardoning, healing grace; for omissions in duty are sins, as well as omissions of duty. If God should deal with us in strict justice, even as to the very best of our doings, we should be undone. The way to obtain pardon, is to seek it of God by prayer; it must be gotten by petition through the blood of Christ. Yet every defect is sin, and needs forgiveness; and should be matter to humble, but not to discourage us, though nothing can make up for the want of a heart prepared to seek the Lord.

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.