Christians believe the Word (the Logos) is the Second Person of the Triune Godhead, and that it was this Logos who came to earth and became flesh (Jesus Christ). “… the Word was God … and the Word became flesh and dwelt among us” (John 1:1-14). “God was manifested in the flesh” (1 Timothy 3:16). “That Holy One who is to be born will be called the Son of God” (Luke 1:35). But, how could GOD actually be the Son of someone … even the Son of God? This drove me crazy for a while, because I had forgotten some of this … Matthew 1:18-23 “… After His mother Mary was betrothed to Joseph, before they came together, she was found with child of the Holy Spirit. … an angel of the Lord (Gabriel) appeared to him (Joseph) in a dream, saying, ‘… that which is conceived in her is of the Holy Spirit.’ … Behold, the virgin shall be with child, and bear a Son, and they shall call His name Immanuel, which is translated, ‘God with us’. ” Luke 1:26-35 “… the angel Gabriel was sent by God … to a virgin betrothed to a man whose name was Joseph … ‘… And behold, you will conceive in your womb and bring forth a Son’ … Then Mary said to the angel, ‘How can this be, since I do not know a man?’ And the angel answered and said to her, ‘The Holy Spirit will come upon you, and the power of the Highest will overshadow you; therefore, also, that Holy One who is to be born will be called the Son of God.’ ” Several Scripture verses tell us that Jesus never sinned, that He was without sin. This sinless human called “Jesus” actually had some so-called “parents”. His mother was Mary, who had man's sin nature. His “father” was the Holy Spirit (i.e. God), who did NOT have man's sin nature. So, this is why Jesus’ name/title “Son of God” is NOT so crazy after all. Jesus “father” really was God ... technically, He was God's Son, Jesus really WAS the Son of God. Surely, this is the ONLY time that this has ever happened, so Jesus was God's “ONLY-begotten” Son. This is what I believe, until someone proves me wrong. And this is why the sin nature is carried in man's sperm, and not in anyone’s blood. Question … Did the Holy Spirit provide sperm (or did He perform a creative miracle) in Mary’s womb? God put curses on everyone involved with the Fall of Man: on Satan, on Adam, on Eve (and on the earth). Question … Why didn’t God mention the tainting of the male sperm? God’s sinless human was necessary Scripture reveals the disasterous situation … sin ==> spiritual death ==> separation from God ==> spiritual blindness/deafness. Because of his sin, man is hopelessly lost and helpless to save himself. But, God devised a plan to save mankind … and this is the very beginning of God’s grace. A sinless human, the Son of God Himself, would die in man’s place! God declared that this would satisfy Him. And this is the foundation of His “new covenant” … the other part is for man to believe it. No more animals shedding their blood … the Son of God would shed HIS blood. The Son of God Himself would serve as the final, ultimate, and perfectly sinless sacrificial Lamb. “The Lamb of God who takes away the sin of the world (in general)!” (John 1:29). The sinless One would take the place of all of the condemned sinners. He would be our Substitute, thus opening the door to heaven to everyone who can/will believe.