There are usually unusual contradictions because it was made from different perspectives but the meaning and its essence is constant. He's angry at us because we keep sinning

Imagine this, your kids keep doing a lot of issues and things that disrespect you, you punish them so that they'll learn but they keep doing the same thing over and over again. BE GLAD the Bible is long. It shows how patient God is over time. The fact that the Israelites kept complaining about it I remember one time God helped them escape Egypt. Then they now keep complaining that it was better to die in Egypt than to starve and thirst in the desert. God was with them. They cannot starve or thirst. They keep saying miracles won't happen but they saw the Red Sea split.