Genesis 33:2

And he put the handmaids and their children foremost, and Leah and her children after, and Rachel and Joseph hindermost. The division of the caravan was care fully planned. Jacob "himself, as the head of the family, as its protector and representative, takes the lead; then follow the handmaids with their children; then Leah with hers; and at last, Rachel with Joseph. This inverted order, by which the most loved came last, is not merely chosen from a careful and wise prudence, but at the same time the free expression of the place which they occupied in his affections. "