John 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?
Of course Jesus could have prevented Lazarus’ death, but he instead allowed it to happen that God might be glorified (Joh.11:4). Which is greater, that Jesus heal a sick man or raise a man from the dead? He’d already healed many sick, and apparently that had now become somewhat of an expectation.
These people lacked faith in the power of God over death. Yes, Jesus can heal the sick and cause that this man had not died, but he can also raise the dead, as he did here with Lazarus, “for the glory of God” (Joh.11:4). Jesus told Martha “that, if thou wouldest believe, thou shouldest see the glory of God” (Joh.11:40). His glory certainly was manifest when he raised Lazarus from the dead, as he said.
Martha believed in the resurrection of the dead (Joh.11:24-27), yet she seems to have forgotten that Jesus had power to raise the dead, for she thought not of it after her brother had been dead four days (Joh.11:39-40).
Let us not, therefore, forget the power of God. He is the creator of the heavens and the earth and the sea and all that therein is (Neh.9:6; Psa.146:6; Jer.32:17; Act14:15, 17:24) and nothing is too hard for him, including raising the dead to life again. He breathed life into the dust of the ground out of which he formed man and man became a living soul (Gen.2:7) It stands to reason that he can breath life into the soul of man again after he is dead.
“But thanks be to God, which giveth us the victory through our Lord Jesus Christ.” (1Co.15:57)