If we can choose just one word to summarize the book of Exodus, it’s reconciliation. God used Moshe (Moses) to bring the descendants of Israel out of Egypt to be His people. Even after the golden calf was made, God still wanted to reconcile to His people Israel, and Israel wanted to reconcile to Him. The people of Israel were willing to give much to be reconciled to Him to the point that Moshe had to tell the children of Israel to stop giving because the coffers were overflowing with gifts. They wanted Him to dwell with them.
God said through Paul that He began a good work in us. God will complete the good work. We are to be living stones. We will surround the Creator of Heaven and Earth and His Son, Yeshua (Jesus) the Mashiakh (Messiah). There will be no temple there, because the temple will be there all the time. The only temple will be the people He saved.
God ultimately used the Messiah to reconcile the world to Himself, no longer recognizing their transgressions. A clean slate, it’s all new. He doesn’t pay attention to our sins, transgressions and iniquities. We are to be ambassadors to reconcile people to God.