The lost children of the house of Israel

Jesus said in Matthew 10:6, “But go rather to the lost sheep of the house of Israel.” and Matthew 15:24, “I am not sent but unto the lost sheep of the house of Israel.”
Who where the lost sheep of the house of Israel? Israel, formerly known as Jacob, worked seven years for Rachel, the woman that he loved. On his wedding night and following a feast, Laban, Rachel’s father, sent her older sister, Leah, into his tent. This is how it came to be that Jacob had more than one wife. Leah disliked the fact that Jacob lived with Rachel. Leah’s sons did things that they should not have done – things which demonstrate that they had little respect for Jacob, their father. Jacob’s second family wanted to be the first family! Jacob never let it happen.