Jesus “asked His disciples, saying, Who do men say that I, the Son of Man, am? So they said, Some say John the Baptist, some Elijah, and others Jeremiah or one of the prophets. He said to them, But who do you say that I am? Simon Peter answered and said, You are the Christ, the Son of the living God. Jesus answered and said to him, Blessed are you, Simon Bar-Jonah, for flesh and blood has not revealed this to you, but My Father who is in heaven.” Matthew 16:13-17 NKJV
This passage says that the Father who is in Heaven, revealed to Peter, that Jesus who was on Earth, is none other than His Son. Jesus Christ being the Son of God is so important that John wrote at the close of his gospel, “And many other signs truly did Jesus in the presence of his disciples, which are not written in this book: But these are written, that you might believe that Jesus is the Christ, the Son of God; and that believing you might have life through his name.” John 20:30-31
The very first sermon Paul ever preached after learning the gospel from Christ Himself, “straightway he preached Christ in the synagogues, that He is the Son of God.” Acts 9:20. The apostle Peter, who lived with Jesus and heard His messages firsthand said, “And we believe and are sure that you are that Christ, the Son of the living God.” John 6:69.
Christ's disciples also exclaimed, “we believe that you came forth from God.” John 16:30. Martha who was a close friend of Jesus and heard many of His teachings said to Him, “Yes, Lord: I believe that you are the Christ, the Son of God, which should come into the world.” John 11:27. Right after Phillip preached the gospel to the eunuch, “said, If you believe with all thine heart, you may. And he answered and said, I believe that Jesus Christ is the Son of God.” Acts 8:37. Mark said who Jesus was in the first verse of his Gospel. “The beginning of the gospel of Jesus Christ, the Son of God.” Mark 1:1. Even the demons knew, “they cried out, saying, What have we to do with you, Jesus, you Son of God?”
Matthew 8:29. So how did the demons know that Jesus was the Son of God? Because they had met Him before! These demons had once lived in Heaven. When Lucifer was cast out of Heaven, he took a third of the angels with him. (Revelation 12:9) So they knew Jesus was the only Son of God!
Christ said, “For I say unto you, Among those that are born of women there is not a greater prophet than John the Baptist:” Luke 7:28. John the Baptist testified, “And I saw, and bare record that this is the Son of God.” John 1:34
Of all the witnesses, the greatest is God the Father Himself. Twice He spoke from heaven saying, “This is my beloved Son,” Matthew 3:17; 17:5. Jesus proclaimed, “I am the Son of God.” John 10:36. He said that He is “the only begotten Son of God.” John 3:18
According to the Bible, Jesus Christ was begotten which literally means born, and before anything was created and long before God sent Him into the world. (John 3:16-17; 18:37; Colossians 1:15; Hebrews 1:1-9 and 1 John 4:9)
The Bible does not tell us how Jesus was begotten but God wants us to know that He is His Son whom He loves very much. Jesus said, “For as the Father has life in himself; so has he given to the Son to have life in himself.” John 5:26. If Jesus had always existed alongside the Father as the Trinity doctrine claims, then God could not have given life to His Son as He would have always had life. But Scripture reveals this is impossible.
According to His own testimony, Jesus is the only begotten Son of God and literally received life from His Father. He did not say that He was one of the three members of a trinity who took on the role of the Son of God.
He said He was the Son of God!