Obviously, the key to Chapter 7 is repetition. The same exact gifts are described for every tribe, twelve times. Why? Why not just summarize? Summarizing would not give the same weight as repetition does. So, what is the emphasis?
Rayburn: here the weight falls on the gifts given and the fact that they were given by every tribe. In fact, put yourself in the place of an Israelite listening to this passage being read in worship. You happen to belong to the tribe of Naphtali or Zebulon. You would listen intently for the name of your tribe and so would the members of every tribe. And you would listen carefully to be sure that your tribe contributed everything the other tribes did.
It is important to note that we give because we have been given so much, because we have been loved so much.
Chapter 8 deals with the purification and offering of the Levites which has to do with atonement. And in order to atonement to take place, there must be sacrifice. Everything that Jesus Christ would accomplish for us is anticipated in the sacrificial system of the OT. We are only saved because Jesus took our place and died for us. He took our punishment while we took His righteousness. That is love! And it is so undeserving, which is what makes it mercy.
In Revelation we see that sin always results in self-destruction. There is a great spiritual warfare going on. Babylon represents any system that is hostile to God (IOW - our own American and Canadian cultures), that uses immoral means to gain its own pleasure and power. As Christians, we are to live in stark contrast to the rest of society around us. Yes, we are Canadians (and Americans) and there are many good things about our countries, and in many ways we are proud to identify ourselves with our nation. But deep down, we are not Canadian or American or any other nationality - we are Christians and our ultimate loyalty is to Christ.
Tomorrow's Bible In a Year Passage passage: Numbers 9-11; Revelation 18