The people chosen by God were far from being the Chosen People. In this reading, Moses is busy on the mountain, lost in the smoke. We know he received the Ten Words written in stone by the hand of God and we know God gave him detailed instructions for the construction of the Tabernacle, but the people do not know, even Aaron and Miriam thought he was gone for good.
Aaron helped the people turn away from God, all the time believing they were doing something to keep them close to God. They had not yet heard the Word Thou shalt not make unto thee any graven image. KJV But they did have the promise that God would lead them and be with them always. They could not even wait forty days.
God intended for the people to have a visible reminder of the presence of God, so he detailed the Tabernacle. The people had a calf built to remind them of the presence of God. Their mistake was in doing it themselves. We must wait for God. God is the source of our salvation, we cannot do it ourselves.
God invited His chosen ones to leave the slavery of Egypt to join Him in a wedding feast, but they decided they did not want to attend. We are invited to that same feast. Jesus and his Bride, married in Heaven and we are invited. When will it be? We do not know. We must be ready. With Paul we should, Celebrate God all day, every day. I mean, revel in him! Make it as clear as you can to all you meet that you’re on their side, working with them and not against them. Help them see that the Master is about to arrive. He could show up any minute! MSG
Be righteous and do good.