John 1:12New King James Version (NKJV)

¹² But as many as received Him, to them He gave the right to become children of God, to those who believe in His name:

John 3:3-8New King James Version (NKJV)

³ Jesus answered and said to him, “Most assuredly, I say to you, unless one is born again, he cannot see the kingdom of God.”

⁴ Nicodemus said to Him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb and be born?”

⁵ Jesus answered, “Most assuredly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God. ⁶ That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. ⁷ Do not marvel that I said to you, ‘You must be born again.’ ⁸ The wind blows where it wishes, and you hear the sound of it, but cannot tell where it comes from and where it goes. So is everyone who is born of the Spirit.”

John 3:16New King James Version (NKJV)

¹⁶ 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.

John 3:18New King James Version (NKJV)

¹⁸ “He who believes in Him is not condemned; but he who does not believe is condemned already, because he has not believed in the name of the only begotten Son of God.