What does John 5:21 mean?
Once again, Jesus makes a claim to power that is reserved only for God. The Old Testament clearly recognized that the power over life and death belonged solely to God (2 Kings 5:6–8). For Jesus to claim that He can give life, just as the Father gives life, means Jesus is stating His own divinity.This conversation is the result of an incident which created two major controversies among local religious authorities. In John 5:1–15, Jesus heals a man who had been crippled for thirty-eight years. Rather than being amazed at the miracle, the Pharisees were upset that Jesus was breaking their Sabbath traditions. Jesus responds not only with claims that what He is doing is right, but that He is equal to God.
The end of this verse echoes the circumstances where Jesus healed a long-disabled man. There was "a multitude" of people with disabilities at the Pool of Bethesda (John 5:3). The man Jesus healed didn't seem all that interested in either Jesus or His power (John 5:6–7, 14). Jesus' choice to heal this man was an example of God's divine sovereignty. In other words, God has the right to choose when He will or will not intervene. This includes the ability to "raise" both the spiritually and physically dead (John 5:24, 29).
Jesus has claimed equality to God in works (John 5:19), love (John 5:20), and will soon claim to be equal to God in judgment (John 5:22) and honor (John 5:23).