Taken from an interview with John Piper (Presented in 6 main points. Today, point 5)
5. God became man.
Now, if that were not amazing enough — we’re over our head, I know; I’m just pointing. If that weren’t amazing enough, here comes the most amazing thing of all about who God is in his perfection and independence and fullness. He is not only completely righteous and just and holy, but overflowing — he is overflowing with his own beauty and goodness and joy, so that his creatures can know him, love him, enjoy him, be with him forever. In other words, the love that God has always enjoyed (and enjoyed is the right word) in the fellowship of the Father and the Son and the Holy Spirit, God aims to share with his creatures.
To do this, God the Father sends God the Son into his creation to be born as the God-man, Jesus Christ. This is what the Gospel of John means when it says, “In the beginning was the Word, and the Word was with God, and the Word was God” (John 1:1). “And the Word became flesh [that is, became a human being] and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth” (John 1:14). And you see the switch in categories from Word to Son, just to make clear that that’s who we’re talking about — the eternal Son, that other, second person in God. The Son of God has always been God, and now he is also man — the God-man, Jesus Christ.
John Piper (@JohnPiper) is founder and teacher of desiringGod.org and chancellor of Bethlehem College & Seminary. For 33 years, he served as pastor of Bethlehem Baptist Church, Minneapolis, Minnesota. He is author of more than 50 books, including Desiring God: Meditations of a Christian Hedonist and most recently Providence.