"Then in accordance with what is written, they celebrated the Feast of Tabernacles with the required number of burnt offerings prescribed for each day. After that, they presented the regular burnt offerings, the New Moon sacrifices and the sacrifices for all the appointed sacred feasts of the Lord, as well as those brought as freewill offerings to the Lord. On the first day of the seventh month they began to offer burnt offerings to the Lord, though the foundation of the Lord's temple had not yet been laid." NIV translation
Even though they did not have a building yet, the people offered sacrifices and celebrated the feasts of the Lord. This was a picture of what was to come through Jesus Christ. He fulfilled all of these sacrifices on our behalf and gave us the meeting place of our hearts. Today, we often get caught up in a fancy building for a place of worship but, as we see here, it is not about the building.