Through The Book Of 1 John [5:12]

The one who has the Son has life. The one who does not have the Son of God does not have life.

“The one who has the Son has life” This phrase is unmistakenly clear, that those who have believed in Jesus Christ (the Son) has eternal life (having their sins forgiven).

“The one who does not have the Son of God does not have life” A person who rejects Jesus does not have eternal life and they cannot obtain it through any other person. This echoes John 14:6 which says, “Jesus told him, “I am the way, the truth, and the life. No one comes to the Father except through me.”