John 3:14-16, 31-36

And as Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, that whoever believes in Him should not perish but have eternal life. For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life.

He who comes from above is above all; he who is of the earth is earthly and speaks of the earth. He who comes from heaven is above all. And what He has seen and heard, that He testifies; and no one receives His testimony. He who has received His testimony has certified that God is true. For He whom God has sent speaks the words of God, for God does not give the Spirit by measure. The Father loves the Son, and has given all things into His hand. He who believes in the Son has everlasting life; and he who does not believe the Son shall not see life, but the wrath of God abides on him.”