After Jesus saves the Jews they will come to him and notice that he has wounds in his hands and in his feet and ask Jesus what they are. The Jews will believe that since Jesus saved them that He is the God of Israel. Jesus will answer them as follows:
Doctrine and Covenants 45:51-53
51 And then shall the Jews look upon me and say: What are these wounds in thine hands and in thy feet?
52 Then shall they know that I am the Lord; for I will say unto them: These wounds are the wounds with which I was wounded in the house of my friends. I am he who was lifted up. I am Jesus that was crucified. I am the Son of God.
53 And then shall they weep because of their iniquities; then shall they lament because they persecuted their king.
Doctrine and Covenants 45:51-53
51 And then shall the Jews look upon me and say: What are these wounds in thine hands and in thy feet?
52 Then shall they know that I am the Lord; for I will say unto them: These wounds are the wounds with which I was wounded in the house of my friends. I am he who was lifted up. I am Jesus that was crucified. I am the Son of God.
53 And then shall they weep because of their iniquities; then shall they lament because they persecuted their king.