The Tabernacle didn't just happen. God gave Moses explicit instructions down to the last detail, and these details matter to God. Every part and piece of the Tabernacle had a specific purpose, use, and meaning. God designed it to serve His purpose and was a copy of the Tabernacle in heaven. Upon entering the Tabernacle, you would first come to the altar of sacrifice. Here, the sinner would offer a live sacrifice to atone for his sins. This altar was the only place to erase the sins of the past.
Solomon's temple was different. It had three entrances, and one could get into it without passing the altar of sacrifice. In Moses' Tabernacle, you could not get to the second altar (in the holy of holies) without atoning for sins at the first altar. The second altar is where worship takes place. It is not possible to worship when burdened by sin.
We must keep our altar in place to have a proper relationship with God through worship.
