Matthew 10:5-6

These twelve Jesus sent forth, having charged them, saying, "Go not into any way of the gentiles, and enter not into a city of the Samaritans;

Matthew 15:24

But He, answering, said, "I was not sent, except to the lost sheep of the house of Israel."

Treasury of Scripture Knowledge

Summary

Behold, I will put a fleece of wool in the floor; and if the dew be on the fleece only, and it be dry upon all the earth beside, then shall I know that thou wilt save Israel by mine hand, as thou hast said.

Bible References

Only

Matthew 10:5
These twelve Jesus sent forth, having charged them, saying, "Go not into any way of the gentiles, and enter not into a city of the Samaritans;
Matthew 15:24
But He, answering, said, "I was not sent, except to the lost sheep of the house of Israel."