Jesus is called the Second Adam in Scripture. Why did we need a second one? Simply put, because the first one failed in his mission to take dominion in the name of God, to obey what he was told to do. The sin of the first Adam was to make himself God, determining his own definitions of right and wrong and then acting accordingly.
Why is the Incarnation the pivotal point in human history? Because to make up for one of God’s creatures asserting himself as capable of becoming God, God Himself took on flesh to become man in order to right the wrong of Adam’s usurpation.
Did Adam thwart God’s plans? Hardly. As difficult as it might be to fathom, the coming of our Savior was not a “plan B” regrouping to get the mission accomplished. It was the plan. If this proves difficult to receive rationally, it is because this can only be received by faith. Why would God set these things in motion with the knowledge that at one point, He would send His son to suffer and die? Without being able to give the definitive answer, what is obvious is that His ways are so far superior to ours, that this plan brings Him greater glory and blessing and honor.
Being human is not to be rejected or demeaned, as in “I’m only human.” No, being human is so glorious that the Second Person of the Trinity became like us. Our problem has never been our humanity. Our problem has always been sin. Celebrating the Incarnation of Jesus is rejoicing in the solution to our problem.
This in one of my favorite Christmas hymns:
1. Of the Father’s love begotten,
Ere the worlds began to be,
He is Alpha and Omega,
He the source, the ending He,
Of the things that are, that have been,
And that future years shall see,
Evermore and evermore!
2. At His Word the worlds were framed;
He commanded; it was done:
Heaven and earth and depths of ocean
In their threefold order one;
All that grows beneath the shining
Of the moon and burning sun,
Evermore and evermore!
3. He is found in human fashion,
Death and sorrow here to know,
That the race of Adam’s children
Doomed by law to endless woe,
May not henceforth die and perish
In the dreadful gulf below,
Evermore and evermore!
4. O that birth forever blessed,
When the Virgin, full of grace,
By the Holy Ghost conceiving,
Bare the Savior of our race;
And the Babe, the world’s Redeemer,
First revealed His sacred face,
Evermore and evermore!
5. This is He Whom seers in old time
Chanted of with one accord;
Whom the voices of the prophets
Promised in their faithful word;
Now He shines, the long expected,
Let creation praise its Lord,
Evermore and evermore!
6. O ye heights of heaven adore Him;
Angel hosts, His praises sing;
Powers, dominions, bow before Him,
And extol our God and King!
Let no tongue on earth be silent,
Every voice in concert sing,
Evermore and evermore!
7. Righteous judge of souls departed,
Righteous King of them that live,
On the Father’s throne exalted
None in might with Thee may strive;
Who at last in vengeance coming
Sinners from Thy face shalt drive,
Evermore and evermore!
8. Thee let old men, thee let young men,
Thee let boys in [Chorus] sing;
Matrons, virgins, little maidens,
With glad voices answering:
Let their guileless songs re-echo,
And the heart its music bring,
Evermore and evermore!
9. Christ, to Thee with God the Father,
And, O Holy Ghost, to Thee,
Hymn and chant with high thanksgiving,
And unwearied praises be:
Honor, glory, and dominion,
And eternal victory,
Evermore and evermore!
source: https://www.lyricsondemand.com/christmascarols/o/ofthefatherslovebegottenlyrics.html