For the Sake of Fellowship
It took Israel three months from their exodus of Egypt until they took up residence around Mount Sinai. In those three months, they saw the end of their slavery, deliverance from Egypt, they walked across the Red Sea, witnessed God’s miraculous provision of food and water, and won a war in God’s name. They saw evidence upon evidence of God’s love and care for them; His strength and power over their enemies and yet His protection over this chosen nation. Israel would go on to spend a long time in the wilderness of Sinai and a lot of their societal structure would be established there. Nevertheless, God wanted to meet His people at Mount Sinai the way He met Moses from within the burning bush.
Being Part of a Radical, Holy Priesthood
If you think about it, 1 Peter had to be a very revolutionary letter to the church. Peter, a jew and disciple of Jesus, repeatedly asserts how Christ’s work on the cross put Jews and Gentiles on the same playing field. Until the cross, there was a clear line between the two groups because the Jews were God’s chosen people under His covenant with Abraham. But Jesus’ spilt blood on the cross meant that not only Jews but Gentiles as well could be brought into the family of God and enjoy the same inheritance, grace, and spirituality that was reserved for Jews only up to that point.