His Miraculous Conception.
The very idea of having a human mother, but without a human father, is Jesus Christ's miraculous conception in the Virgin Mary's womb. "Now the birth of Jesus Christ was on this wise: When as His mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost" (Matthew 1:18). Though the angel Gabriel explained the general idea of Mary's miraculous conception of Jesus, i.e., "The Holy Ghost shall come upon thee, and the Power of the Highest shall overshadow thee: therefore also that Holy Thing which shall be born of thee shall be called the Son of God" (Luke 1:35), any more explanation than that would be impossible for the human mind to fathom. "And, behold, thou shalt conceive in thy womb, and bring forth a Son, and shalt call His name JESUS" (Luke 1:31).
His Miraculous Though Human Birth.
The birth of the LORD Jesus Christ is not a fanciful tale of angels breeding with the "daughters of men" (Genesis 5:4) to produce a hybrid race of "giants" (5:4); instead, Jesus was born as truly a man, while He was truly God. "16 And Jacob begat Joseph the husband of Mary, of whom was born Jesus, Who is called Christ... 25 And knew her not till she had brought forth her firstborn Son: and he called his name JESUS" (Matthew 1:16, 25). The explicit and honest statement of Scripture is that Joseph had no part in the human propagation of Jesus. "Behold, a virgin shall conceive, and bear a Son, and shall call His name Immanuel" (Isaiah 7:14). The Wise Men searched for a Newborn Baby Boy-- a Boy that was born in a stable, bedded where animals fed, and excluded from the inn due to lack of vacancy. "7 And she brought forth her Firstborn Son, and wrapped Him in swaddling clothes, and laid Him in a manger; because there was no room for them in the inn... 11 For unto you is born this day in the city of David a Saviour, which is Christ the LORD" (Luke 2:7, 11).
He Partook of Flesh and Blood.
Early Gnosticism denied that Jesus actually partook of flesh and blood, but only appeared to be human. But, Scripture is emphatic that Jesus, the Eternal Logos, became real, human flesh and blood. "And the Word was made flesh, and dwelt among us, (and we beheld His glory, the glory as of the Only Begotten of the Father,) full of Grace and Truth" (John 1:14). It was necessary for Christ to have a human nature, so that His suffering and death on the Cross would "destroy the works of the devil" (1John 3:8), in that all who trust in Christ Jesus for Salvation would overcome the world, i.e., "This is the victory that overcometh the world, even our faith" (5:4). "Forasmuch then as the children are partakers of flesh and blood, He also Himself likewise took part of the same; that through death He might destroy him that had the power of death, that is, the devil" (Hebrews 2:14).