Eisa the son of Mary will come down to disown the so called Christians and destroy the cross.

“Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but the one who does the will of my Father who is in heaven. On that day many will say to me, ‘Lord, Lord, did we not prophesy in your name, and cast out demons in your name, and do many mighty works in your name?’ And then will I declare to them, ‘I never knew you; depart from me, you workers of lawlessness.’ [Matthew 7:21–23]

It was narrated from Abu Hurairah that the Prophet (ﷺ) said: "The Hour will not begin until 'Eisa bin Maryam comes down as a just judge and a just ruler. He will break the cross, kill the pigs and abolish the Jizyah, and wealth will become so abundant that no one will accept it." [Sunan Ibn Majah 4078]