This chapter introduces the solemnity of the giving of the law upon mount Sinai, which was one of the most striking appearances of the divine glory that ever was in this lower world. We have here, I. The circumstances of time and place (Exo 19:1, Exo 19:2). II. The covenant between God and Israel settled in general. The gracious proposal God made to them (Exo 19:3-6), and their consent to the proposal (Exo 19:7, Exo 19:8). III. Notice given three days before of God's design to give the law out of a thick cloud (Exo 19:9). Orders given to prepare the people to receive the law (Exo 19:10-13), and care taken to execute those orders (Exo 19:14, Exo 19:15). IV. A terrible appearance of God's glory upon mount Sinai (Exo 19:16-20). V. Silence proclaimed, and strict charges given to the people to observe decorum while God spoke to them (Exo 19:21, etc.).