The interesting information contained herein is the difference between the "covenant made to Yisro” and the “covenant with David”(see bottom paragraph); however, read all:
Greater is the covenant that God made with the sons of Yithro . . . “If the children (David’s) forsake my law . . . . Then will I visit their transgression with the rod, and their iniquity with strokes” … “but if your children (Yisro's) keep my covenant and My testimony that I shall teach them, their children also forever shall sit upon the throne”
IS THIS NOT RELEVANT NOW?