Today there are three chapters.
Matthew 5 is about the sermon on the mount, and begins with the Beatitudes. After that Jesus adds the spiritual dimension to the Law. He has not come to destroy the Law, but to fulfill the Law. First Jesus deals with murder, where vengeance is out, instead be reconciled with your adversary before you can be reconciled with God. Then He deals with adultery; you are not only not to do it, you are not allowed to even think about it. Likewise, the only time divorce is allowed is for already committed adultery. Piling on, he addresses taking of oaths, this was serious business under the Law, but Jesus says “Let your yes be yes and your no, no”. Furthermore it was said “An eye for an eye” But Jesus tells us to pray for our adversaries, no matter what. And love your enemies.
Exodus 15 tells of the songs of Moses and Miriam, as God had delivered them from the Egyptians. Then they come to the bitter waters of Marah and the sweet waters of Elim.
In Exodus 16 God gives them Manna (what is it?) and quail, and Moses gave the instructions on how to gather it. And they ate Manna for 40 years.