In Romans 1:1-4 we see Paul's approach. He refers to "the gospel of God, (which he [God] had promised afore by his prophets in the holy scriptures)." Christianity is not a first-century invention. It is, in fact, the fulfillment of that which, with one voice, the Hebrew prophets consistently foretold for centuries.
There are more than 300 Messianic prophecies in the Old Testament. Why? So Israel could identify Him, when in the fullness of time God would send forth his Son (Galatians 4:4). The third chapter in the Bible contains the first prophecy of the Messiah's coming, His virgin birth ("the seed of the woman") and His destruction of Satan (Genesis 3:15). The prophets declared that He must be of the "lineage of David" (Jeremiah 23:5; 2 Samuel 7:10-16; Psalms 89:3-4) and rule upon David's throne. To prove that Jesus met this criteria, Matthew and Luke begin with the genealogy of Joseph and Mary.
Having rejected Jesus, the Jews still hope for their Messiah to come-but they hope in vain. Jesus Christ fulfilled Malachi 3:1 ("the Lord [Messiah], whom ye seek, shall suddenly come to his temple") when He cast out the money changers and merchants (Mark 11:15). The destruction of the temple 38 years later in A.D. 70 made it impossible during the last 1,923 years for any would-be Messiah to fulfil that scripture. Moreover, all genealogic records were lost in the destruction of the temple, so a future "Messiah" would not be able to prove the necessary descent from David.
Yes, the temple will soon be rebuilt. Instead of cleansing it, however, as Christ did, Antichrist will defile it with his image and force the world to worship him as God: "he as God sitteth in the temple of God, showing himself that he is God" (2 Thessalonians 2:4).
Jacob prophesied, "The sceptre shall not depart from Judah...until Shiloh [Messiah] come..." (Genesis 49:10). Shortly after the birth of Jesus, about A.D. 7, the sceptre departed when the Jews lost the right to enforce the death penalty. Thereafter, it was forever too late for Messiah to come. By God's grace, however, He had already come; and He will come again to rescue at Armageddon those who rejected Him the first time. They will know Him by the marks of Calvary ("they shall look upon me whom they pierced"; Zechariah 12:10). The sceptre having departed from Judah, Christ, instead of being stoned by the Jews, was executed by the Romans, whose supreme penalty was crucifixion. Thus was fulfilled yet another prophecy: "...they pierced my hands and my feet" (Psalms 22:16)!
But back to the cradle. Caesar Augustus had no inkling of the momentous effect of his decree "that all the world should [return to the city of one's birth to] be taxed" (Luke 2:1). That decree brought Joseph and Mary to Bethlehem in time for the birth of her "firstborn son" (so she had other children) in fulfillment of Micah 5:2: "But thou, Bethlehem...out of thee shall he come forth unto me that is to be ruler in Israel...."
What depth of meaning there is in the simple statement, "when the fullness of time was come, God sent forth his Son" (Galatians 4:4)! His birth had to occur before the sceptre departed from Judah; His death, after. His birthplace was determined by a Roman decree; His death and its method of execution, by the Roman occupation of Israel. He had to come before the temple was destroyed and with it the genealogic records.
The "fullness of time" has passed. No one else can meet the Messianic criteria laid down by the Hebrew prophets! That simple phrase, however, carries a much deeper meaning than we have seen above. If the timing of His birth causes us to marvel, the timing of Christ's death is even more precise and full of meaning...
Dave Hunt