When God became man: To place adopted sons

"But when the fullness of the time came, God sent forth His Son, born of a woman, born under the Law, so that He might redeem those who were under the Law, that we might receive the adoption as sons" (Gal. 4:4-5).

When God the Son came to earth, He lived a perfect life under the Law in order to be an acceptable sacrifice to His Father. The result of His atoning death following His righteous life was that sinners and slaves became sons of God by adoption.

In the great Old Testament chapter on God's Suffering Servant, the prophet Isaiah said this One "will see His offspring" (Is. 53:10). God the Son left Heaven to produce children for His Father. We who have passed from death into life can thank God that He has adopted us because His own Son was willing to come to earth as the child of a woman and place us in His own family.