2 Chronicles 8:13

8:13 He observed the daily requirements for sacrifices that Moses had specified for Sabbaths, new moon festivals, and the three annual celebrations – the Feast of Unleavened Bread, the Feast of Weeks, and the Feast of Temporary Shelters.

2 Chronicles 30:21

30:21 The Israelites who were in Jerusalem observed the Feast of Unleavened Bread for seven days with great joy. The Levites and priests were praising the Lord every day with all their might.

2 Chronicles 35:16

35:16 So all the preparations for the Lord’s service were made that day, as the Passover was observed and the burnt sacrifices were offered on the altar of the Lord, as prescribed by King Josiah.