4 But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, 5 to redeem those who were under the law, so that we might receive adoption as sons.
Before the creation of the world God decreed a plan by which Christ would enter creation to suffer and die on a bloody cross so that he might save many, bringing them into the family of God. God’s plan was not revealed to humanity all at once, but was revealed bit by bit like pieces of a puzzle. Over time those pieces multiplied, but no one could put the puzzle together because no one could see into the mind of God to see how all the pieces fit together, not even the angles. The final puzzle piece and the picture by which all the other pieces could be put together came in the person of Christ. His coming was not by accident, nor was it random happenstance, no his coming was planned – from the very moment of his birth to the exact time of his death God had arranged every detail so that Paul could say that “when the fullness of time had come, God sent forth his Son.” Christ came to free us from the slavery of sin that came from the demands of the law. He submitted himself to that same law to live the perfect life we could never live and in redeeming us he freely gift to us a perfect life of righteousness so that we might be adopted by the heavenly Father and become children of God. So we are no longer enslaved to the law, but free to obey it because of the wonderful grace of God given to us in Christ.