I have overheard this conversation about the book of Numbers. Chapter 1 and 2 was talking about something that I have read many times before but I never knew it was revealing something else which in a way surprised me!
Without giving it away, I think it's best you try to find it yourself.
First, you need a pencil (pen) and paper.
Read carefully Numbers 1 and figure out what each tribe has in numbers (census). Label each tribe with the number of men of war for each.
Once you got that all laid out. Follow the instructions very carefully in Numbers 2. (hint: the best way to lay this out is to draw it out)
One more hint, don't forget the tabernacle...it is the center piece and that is important to your findings.
Need anymore hints, private message me.
Eddie