Another reminder of the covenant and a reminder not to worship other gods. One bit of information is added to it: no following your own heart.
Blah, blah, blah, covenant. Blah, blah, blah, blessings if you follow it. Blah, blah, blah, curses if you worship other gods. The most interesting thing about it is that Jerry Falwell thinks it's all a build-up to the book of Revelations and the second coming of Jesus, because he's deluded.
Moses is 120 and has clearly been out of it for awhile. He reminds the Israelites, as he has done in umpteen chapters, that god is going to defeat their enemies. He designates Joshua as his successor.
Next he calls on the priests to read all the laws every seven years at the feast of tabernacles. Urgh, are there still sects out there who sit through a reading of all the laws supposedly placed in the Ark of the Covenant? Remember to bring a pillow that day.
God then actually appears again in cloud form and tells Joshua and Moses that the people are going to be led astray in future and he will forsake them and turn away from them. That's right! God is not a figment of your imagination, we just haven't got our theology right in 2000 years of practicing since this book was published!
Moses and Joshua then write a song about the covenant but we don't get to hear it until the next chapter.