1 Kings 17:22-24, 2 Kings 4:32-37, Jn 11:14-15, Jn 11:32-33, Jn 11:37-45

In the Old Testament, a prophet raised the dead to life. This was foretold in advance of the work that Christ would come and perform. (1 Kings 17:22-24, 2 Kings 4:32-37)

1 Kings 17:22 And the Lord heard the voice of Elijah; and the soul of the child came into him again, and he revived. 23 And Elijah took the child, and brought him down out of the chamber into the house, and delivered him unto his mother: and Elijah said, See, thy son liveth. 24 And the woman said to Elijah, Now by this I know that thou art a man of God, and that the word of the Lord in thy mouth is truth.

2 Kings 4:32 And when Elisha was come into the house, behold, the child was dead, and laid upon his bed. 33 He went in therefore, and shut the door upon them twain, and prayed unto the Lord. 34 And he went up, and lay upon the child, and put his mouth upon his mouth, and his eyes upon his eyes, and his hands upon his hands: and stretched himself upon the child; and the flesh of the child waxed warm. 35 Then he returned, and walked in the house to and fro; and went up, and stretched himself upon him: and the child sneezed seven times, and the child opened his eyes. 36 And he called Gehazi, and said, Call this Shunammite. So he called her. And when she was come in unto him, he said, Take up thy son. 37 Then she went in, and fell at his feet, and bowed herself to the ground, and took up her son, and went out.

Jesus was pleased that He was not there when Lazarus died, because He could raise Lazarus from the dead so that people would believe that Jesus was the Christ. (Jn 11:14-15)

Jn 11:14 Then said Jesus unto them plainly, Lazarus is dead. 15 And I am glad for your sakes that I was not there, to the intent ye may believe; nevertheless let us go unto him.

When Jesus saw how people were sad to see the death of Lazarus because they still did not believe that Jesus was the Christ, He groaned in the spirit. (Jn 11:32-33)

Jn 11:32 Then when Mary was come where Jesus was, and saw him, she fell down at his feet, saying unto him, Lord, if thou hadst been here, my brother had not died. 33 When Jesus therefore saw her weeping, and the Jews also weeping which came with her, he groaned in the spirit, and was troubled.

When the people said that Jesus had not kept Lazarus from dying, Jesus once again groaned in the spirit. (Jn 11:37-38)

Jn 11:37 And some of them said, Could not this man, which opened the eyes of the blind, have caused that even this man should not have died? 38 Jesus therefore again groaning in himself cometh to the grave. It was a cave, and a stone lay upon it.

Jesus showed that He was the Christ by raising Lazarus from the dead. (Jn 11:40-45)

Jn 11:40 Jesus saith unto her, Said I not unto thee, that, if thou wouldest believe, thou shouldest see the glory of God? 41 Then they took away the stone from the place where the dead was laid. And Jesus lifted up his eyes, and said, Father, I thank thee that thou hast heard me. 42 And I knew that thou hearest me always: but because of the people which stand by I said it, that they may believe that thou hast sent me. 43 And when he thus had spoken, he cried with a loud voice, Lazarus, come forth. 44 And he that was dead came forth, bound hand and foot with graveclothes: and his face was bound about with a napkin. Jesus saith unto them, Loose him, and let him go. 45 Then many of the Jews which came to Mary, and had seen the things which Jesus did, believed on him.