What does Ezra 3:2 mean?

Then Jeshua, son of Jozadak, and his fellow priests, along with Zerubbabel, son of Shealtiel, and his relatives, started rebuilding the altar of Israel’s God so they could offer burnt offerings on it, just like it says in the Law of Moses, God’s servant. Ezra 3:2 - Modern Text Bible

(The leaders—both priests and laymen—take the initiative to restore worship by rebuilding the altar, following the instructions given in the Torah.)