Ezra 6:18

"And they installed the priests in their divisions and the Levites in their groups for the service of God at Jerusalem, according to what is written in the Book of Moses." NIV translation

With this new temple, the people had decided to turn back to the word of God. This included setting the proper people in place for the service in the temple.

Ezra 6:19 - 22

"On the fourteenth day of the first month, the exiles celebrated the Passover. The priests and Levites had purified themselves and were all ceremonially clean. The Levites slaughtered the Passover lamb for all the exiles, for their brothers the priests and for themselves. So the Israelites who had returned from the exile ate it, together with all who had separated themselves from the unclean practices of their Gentile neighbors in order to seek the Lord, the God of Israel. For seven days they celebrated with joy the Feast of Unleavened Bread, because the Lord had filled them with joy by changing the attitude of the king of Assyria, so that he assisted them in the work on the house of God, the God of Israel." NIV translation

Now that the temple was restored, the people were able to celebrate the feasts of the Lord. They began with the Feast of Unleavened Bread (Passover) at its proper time. This was commanded by God after they left captivity in Egypt (see Exodus) as a reminder of the fact that God had delivered His people and spared their firstborn sons. This was the same feast that was happening when Jesus entered Jerusalem for the final time as our Passover lamb. Just as the king of Assyria had given the All Clear! signal to rebuild the temple, Jesus cleared the way for us to have a right relationship with God through His sacrifice.

Ezra Chapter Six Study Quiz