Since the trinity doctrine teaches three co-eternal beings, then the Bible stating Jesus is the Son of God presents another serious problem for Trinitarians as it contradicts Scripture. If Jesus is born of God as the Bible states more than a hundred times, then Jesus cannot be co-eternal with the Father and so this is yet another problem that Trinitarians have to explain away. This is typically done by a play on words from the Thayer Dictionary definition of the Greek word for “begotten” which is “monogenes.” It is claimed that “monogenes” means Christ was one of a kind rather than the intended meaning of the only begotten Son of God. Strong's dictionary says, only born, that is, sole: - only (begotten, child). So it more accurately means only child. Here is every single use of “monogenes” found in the entire Bible. “only begotten son” 4 times referring to Jesus and 1 time referring to Abraham's only son Isaac, “only begotten of the Father” 1 time, “only son of his mother” 1 time, “only daughter” 1 time and “only child” 1 time. So there is not one single Scripture in the Bible that uses this Greek word that does not refer to an only son, daughter or child that was not begotten.
And since the word “son” is prefixed by the word “begotten” more than once when referring to Christ, then it can only mean Jesus is born of God and explains why He is called the Son of God to state the obvious. We also have Paul's testimony in Colossians 1:15 which says Christ was the first born before anything was created. And the Greek word “prototokos” used in this verse cannot be abused as it means, first born (usually as noun, literally or figuratively): - firstbegotten (-born). There are also other Scriptures that show Jesus was born of God as you are about to see, not that there should be any doubt.
“Christ is “the image of the invisible God, the first-born of every creature; for by Him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers; all things were created by Him, and for Him; and He is before all things, and by Him all things consist.” The first chapter of Colossians will wonderfully enlighten the mind as to the truth as it is in Jesus.” — (E.G. White, ST, Nov. 15, 1899)
Thus we see that Paul is telling us that Christ was “Begotten First or Born Before all creation” because all of creation was by God through His Son Jesus Christ. “And to make all men see what is the fellowship of the mystery, which from the beginning of the world has been hid in God, who created all things by Jesus Christ.” Ephesians 3:9
“The dedication of the first-born had its origin in the earliest times. God had promised to give the First-born of heaven to save the sinner.” — (E.G. White, DA, p. 51)
“God sent His own Son in the likeness of sinful flesh, liable to physical infirmities, tempted in all points like as we are. He was the Son of the living God. His personality did not begin with His incarnation in the flesh.” — (E.G. White, Lt77, Aug 3, 1894)
Thayer's Greek Lexicon says, “Christ is called, firstborn of all creation, who came into being through God prior to the entire universe of created things.” Barnes New Testament Notes on Colossians 1:15 says, “the word firstborn - pro-tot-ok'-os - properly means the firstborn child of a father or mother.” Jamieson, Fausset and Brown Commentary says, “Begotten (literally, 'born') before every creature.” Matthew Henry's Commentary states “He was born or begotten before all the creation, before any creature was made;”
Scripture refers to Jesus Christ as “the image of God,” “the image of the invisible God,” and “the express image of his person.” (2 Corinthians 4:4; Colossians 1:15; Hebrews 1:3). An image is never the original but always a likeness or duplication of the original. Christ is the Son of God and therefore the express image of His Father. It would be incorrect to say that the Father is the image of His Son because the Father is the original. In the same manner it would be incorrect to refer to Christ as the true or original God since He is the image of the true God.
The Bible refers to Christ as God's Son at least 120 times. Forty seven times using the phrase “Son of God.” Regarding the genuineness of Christ's Sonship, He is called the “only begotten” six times, “the firstborn” three times, “the firstbegotten” once and God's “holy child” twice. Four verses say He was “begotten” prior to His incarnation so this cannot be applied to His birth on earth from Mary as some have chosen to believe. Four verses say that He “proceeded forth from,” “came out from” or “camest forth from” the Father. The evidence on this subject is overwhelming. Christ truly is the literal begotten Son of God who was brought forth from the Father before all creation. The example verses below with the help of the Thayer dictionary also reveal that Jesus was born of the Father before the world was, then much later, He came into the world.
Thayer's Greek-English Lexicon
G1831 - To come forth from physically, arise from, to be born of.
G2064 - To come from one place to another.
John 8:42 “Jesus said unto them, If God were your Father, you would love me: for I proceeded forth [G1831] and came from God; neither came [G2064] I of myself, but he sent me.”
John 16:27-28 “For the Father himself loveth you, because you have loved me, and have believed that I came out [G1831] from God. 28 I came forth [G1831] from the Father, and am come [G2064] into the world: again, I leave the world, and go to the Father.”
John 17:7-8 “Now they have known that all things whatsoever you have given me are of you. 8 For I have given unto them the words which you gavest me; and they have received them, and have known surely that I came out [G1831] from you, and they have believed that you did send me.”