When the people of Judah returned fron Babylon to Jerusalem, there must have been a whole host of matters to attend to after a 70 year absence. But the text of Ezra 3:1-7, tells us that once the seventh month of the year came, the month in which Jews observe many of the Old Testament feasts, what gained top priority in their lives was the re-introduction of the worship of God. They did this through reconstructing the altar that had been torn down and offering the required sacrifices and feasts as outlined in the Law of Moses, remembering the past and how God saved them and looking forward to the future when all nations would come to Jerusalem to worship God. Today God still desires His people to worship Him and the be those through whom the message of His grace will reach the whole world.