As we study Chapter 15 of the Book of Exodus, we see that having been rescued by the parting of the Red Sea from the advancing Egyptian army, Moses and the Israelites worship God in song; the first song found in the Bible. But then as they continue their journey in the wilderness and find themselves without water. They start complaining and blame Moses and God. Overall, the trust of the Israelites in God’s providence for them is dependent on their circumstances and how they feel. We can end up being the same, our mood determining our faith. This passage teaches us about the heart of worship and also serves as a warning to us not to allow our mood to determine our faith in God’s provision in our lives.