2 Chronicles 30

Nevertheless some from Asher, Manasseh, and Zebulun humbled themselves and came to Jerusalem.  Also the hand of God was on Judah to give them singleness of heart to obey the command of the king and the leaders, at the word of the Lord. vv.11-12

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King Hezekiah is keeping the Passover for all in Judah and Jerusalem to celebrate.  The Passover hadn't been kept in centuries, since the time of Solomon.  Hezekiah really was bringing worship back to the One and Only True God, not just not doing evil or just obeying whatever was in the moment right before him, but digging out their roots and staying true to God's ordinances.  Hezekiah even sends word to all those in the northern kingdom for all to celebrate the Passover.  He encourages them to turn back to their God and that the Lord will turn away from them and show His grace and mercy on them in the midst of the Assyrian captivity that was taking place in their land.  Unfortunately most of Israel laughed at the message, yet some humbled themselves and went to Jerusalem to celebrate the passover and probably even remained in Judah.  God gave them singleness of heart to follow one God and this ultimately is the reason for this wonderful change. They did not worship various idols but became unanimous in one spirit to follow the word of the Lord.  "Numbers will be scorners, but some will be humbled and benefited" (Matthew Henry).  What word of the Lord do you hear to restore past relationship with others and with Him?  Ask God for singleness of heart in an area you struggle with choosing Him.