Replacement Theology?

Regarding the theological status of modern day Jewish people, covenant theology is often referred to as “supersessionism,” or “replacement theology”, due to the perception that it teaches that God has abandoned the promises made to the Jews and has replaced the Jews with Christians as his chosen people in the earth.

Are you really foolish enough to believe this heresy? If so, what part of ‘Everlasting Covenant” don’t you understand?

God is not man, that he should lie, or a son of man, that he should change his mind. Has he said, and will he not do it? Or has he spoken, and will he not fulfill it?
(Numbers 23:19 ESV)

Is it conceivable that God could break His promises or forsake His people? Could He ever reject His people and take another people in their stead? If so, there is no confidence in our faith and hope. Surely God is faithful to Israel.

Can a woman forget her sucking child, that she should not have compassion on the son of her womb? yea, they may forget, yet will I not forget thee. Behold, I have graven thee upon the palms of my hands; thy walls are continually before me.
(Isaiah 49:15-16 KJV)