To enter heaven, one must be born again, a spiritual rebirth that comes through faith in Jesus Christ. Jesus teaches that being born again is not an optional extra, but a necessary step to enter the kingdom of God. He explains that being born again means to be born of water and the Spirit, symbolizing spiritual cleansing and renewal. Jesus uses the illustration of the bronze snake in the wilderness to explain that just as Moses lifted up the snake, so the Son of Man must be lifted up, referring to his own death and resurrection on the cross. Through faith in Jesus, one can receive eternal life and be born again, starting a new life in Christ.
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