Tithes (chapter 7)

This author said Abraham gave a tenth of the spoils of his victory to Melchizedek.  Thus, the descendants of Levi collect tithes from the other Israelites.  In this case, Melchizedek blessed Abraham and received tithes from him.  Normally, the superior blesses the inferior.  Only mortals are involved with tithes.  Levi paid tithes to Melchizedek through Abraham, as he was in the loins of his ancestor.  What do you think about tithing?