'Celebrate' in the Bible

Now Hezekiah sent to all Israel and Judah and wrote letters also to Ephraim and Manasseh, that they should come to the house of the Lord at Jerusalem to celebrate the Passover to the Lord God of Israel.

For the king and his princes and all the assembly in Jerusalem had decided to celebrate the Passover in the second month,

but they had been unable to celebrate it then because not enough priests had consecrated themselves and the people had not yet been gathered together in Jerusalem.

so they published a decree that was circulated throughout Israel from Beer-sheba to Dan that they are to come celebrate the Passover to the LORD God of Israel in Jerusalem. The Passover had not been celebrated in great numbers as was being prescribed by the decree.

Now many people were gathered at Jerusalem to celebrate the Feast of Unleavened Bread in the second month, a very large assembly.

After this, the whole assembly agreed to celebrate for another seven days, and so they did and they were very happy to do so!

That's how the LORD's service was prepared that day to celebrate the Passover and to offer burnt offerings on the LORD's altar according to what King Josiah had commanded.