As Jesus once heard a blind man so he could see again, Jesus could have gone to save his ill friend by healing him, but he did not. He knew that Lazarus would die and come back to life. He wanted people to see the glory of God and have faith in him. Thus, he waited for 2 days and then traveled back, and asked the people to believe in him and in God. Upon seeing their belief and faith he brought Lazarus back to life.