“Behold, the days are coming, says the LORD, when I will make a new covenant with the house of Israel and with the house of Judah.”
Jeremiah 31:31 

God does keep His promises. He promised to never forsake Israel, and in the Millennial Kingdom we will see a prominent restoration of the people and nation.

The above scripture shows that God is not done with His people. There are many churches today who believe that God is through dealing with the Jews. In fact, these same churches believe that prophetic Scriptures such as the one above are referring to believers and not the Jewish people. However, God has promised that He will once again turn towards His people (the Jews) and bring them into a relationship with Himself. As Christians, we need to pray for the peace of Jerusalem and love our Jewish brothers and sisters.