In this chapter, I. Israel looks back upon Egypt with a song of praise for their deliverance. Here is, I. The song itself (v. 1-19). 2. The solemn singing of it (Exo 15:20, Exo 15:21). II. Israel marches forward in the wilderness (Exo 15:22), and there, 1. Their discontent at the waters of Marah (Exo 15:23, Exo 15:24), and the relief granted them (Exo 15:25, Exo 15:26). 2. Their satisfaction in the waters of Elim (Exo 15:27).