However, just because something is an Old Testament teaching, doesn’t mean it isn’t applicable to today. Since the tithe was to provide for the livelihood of the priests, I think we should do the same for our churches today.
I honesly think God was “teaching” them to be civilized.
When I read through the Old Testament and see the ways in which God chose to reveal Himself during that time to His people, and sometimes have a hard time understanding why He did certain things and gave certain commandments, I often come back to your reason right there.