Numbers 36:5-13

Although in every point of view, politically and nationally considered, this law seems good, yet certainly it had a much higher significance, in the prospect of gospel mercies. JESUS is the Head of the tribe of his people. With him must all alliance be made, and with his people in him. The spiritual law of the gospel is now to this purpose: let the people marry to whom they think best; only to the family of the tribe of JESUS. Or, as the apostle says, be ye not unequally yoked with unbelievers. 2 Corinthians 6:14.