Jn 11:42-44,
Jesus went to Lazarus after he died to show that He was the Christ. And He raised Lazarus to life. (Jn 11:14-15,42-44)
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. 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.