Jesus came to the lost sheep of Israel as it was the Father's will to proselytize Jacob's children in the Gospel of the New Covenant as Jacob's children were set apart, sanctified, to fulfill the promise made to Abraham that through Abraham would come one who would be "a blessing to every family of the Earth" (Genesis 12:3b)...Jew, Israelite, Gentile; unfortunately, Jacob's children rejected the Messiah sent to them; Jacob's children rejected the New Covenant Gospel established in Messiah's blood (Matthew 26:28); Jacob's children refused to be a blessing through the Great Commission; Jacob's children conspired with the Roman authorities to have Messiah beaten almost to death then suffocated on a Roman Cross while simultaneously exclaiming that Messiah's blood be upon them and their children; therefore, the promise made to Abraham was taken from Jacob's children and given to the Gentiles until such time the fullness of the Gentiles have entered the Kingdom i.e. the Tribulation era; henceforth, Jacob's children are suffering under the "Jewish blood curse" of their forefathers...a curse of unbelief, self-righteousness through law, that will culminate in only a "remnant" of Israel's children finding life in Eternity (Isaiah 10:22; Romans 9:27).

"And I have other sheep that are not of this fold; I must bring them also, and they will listen to My voice; and they will become one flock, with one shepherd." John 10:16 (NASB)

Concerning the promise of the New Covenant given to Israel via Jeremiah (Chapter 31) and Ezekiel...