Ezra 3:1-6

And when the seventh month had come, and the children of Israel were in the cities, the people gathered together as one man to Jerusalem. Then Jeshua the son of Jozadak and his brethren the priests, and Zerubbabel the son of Shealtiel and his brethren, arose and built the altar of the God of Israel, to offer burnt offerings on it, as it is written in the Law of Moses the man of God. Though fear had come upon them because of the people of those countries, they set the altar on its bases; and they offered burnt offerings on it to the LORD, both the morning and evening burnt offerings. They also kept the Feast of Tabernacles, as it is written, and offered the daily burnt offerings in the number required by ordinance for each day. Afterwards they offered the regular burnt offering, and those for New Moons and for all the appointed feasts of the LORD that were consecrated, and those of everyone who willingly offered a freewill offering to the LORD. From the first day of the seventh month they began to offer burnt offerings to the LORD, although the foundation of the temple of the LORD had not been laid.