Evidences of Eternal Sonship

1. He is the Son of God by merit of His eternal relationship with the Father. (John 17:24)
   Nature of the eternal Sonship of Christ: it shows the mysterious (not physical) nature of this relationship; it does not mean that Christ had a beginning or a birth. As with Isaac (Hebrews 11:17; see Genesis 22:12), it refers to His special relationship rather than origin.

2. He was born as a child but given as the Son

He was God's Son before He was born as a baby in the manger (Isaiah 9:6)
3. He was sent into the world (1 John 4:9)

4. He is "as of the only begotten of the Father"; the word as shows that this title deals with His relationship to the Father and not with His origin (john 1:14).
   How could Christ exist as the Son before He was born as the Son?
   i) This can also be answered by considering the state of every believer. If you are saved, you have been born twice, yet you existed before either of those births.
   ii) The Bible says that Christ was the Lamb slain before the foundation of the world (Revelation 13:8). In the eyes of God, Christ was slain before He was born into the world as a man.

5. He is the Son of God by merit of His rule over all creation; in this, He is declared to be the firstborn of every creature as Israel is declared to be the firstborn of God (Exodus 4:22); it is simply an exalted position.