God leads the Israelites from Egypt to Mount Sinai, where he establishes the covenant with them through a set of commandments.
The first part of Exodus recounts how God miraculously delivered Israel from Egypt. As they approach Mount Sinai, God’s presence covers the mountain in a dark cloud. Moses climbs the mountain to receive God’s law and a plan for the tabernacle. But immediately after this, Israel breaks the covenant, and Moses intercedes for them by asking God to remember his promise to Abraham.
God relents and re-establishes the covenant. The tabernacle is completed and God’s glory fills it. However, Moses is unable to enter this holy space because of his own rebellion.