As Israel finally makes it to Mt. Sinai, God reasserts the covenant to them. They will be his special possession, a kingdom of priests, and a holy nation. Accepting this covenant, the people are consecrated and cleansed and come to the foot of the mountain to be joined to God - a wedding betrothal. However, the need for cleansing can only be fully undone with an even greater act of covenant grace by God. It is Jesus who brings the ultimate union and closeness to God.