The Son of God took on flesh for two reasons: to be our substitute and our sacrifice. You see, when God created mankind in his image, his desire was that we would live holy lives, full of love for him and our fellow man. When mankind fell into sin, that became impossible. So, the heavenly Father sent Jesus. He is the only human being to keep all of God’s law perfectly. He did that as our substitute. Through faith, we claim his perfection as our own. But we needed another gift—one who could pay for the sin we had committed. And so, the Son of God became human for another reason—so that he might die as the sacrifice for our sins, removing that barrier between us and a holy God.
Understanding we needed both—substitute and sacrifice—helps us better understand Jesus’ saving work. That work includes more than Jesus’ death on the cross. Jesus saving work began the moment he was born under the law and obeyed it. This week, we thank God that Jesus served us in both these much-needed ways!

Have you ever opened a Christmas present and had to ask, “What is it?” Perhaps it was some new type of technology or perhaps a unique toy. You were grateful for the gift, but also not 100% certain what you were looking at. “What is it?” Today, as we look into the manger, we ask that question. In this case, the question is not quickly or easily answered. It requires both deep thought and humble awe. We are looking at the same God who once told the prophet Moses, “No one may see me and live.” Yet, Mary, Joseph, and the shepherds all saw their holy God and survived. How? God became human, hiding his glory within our flesh, so that he might come to us without instilling fear or dread.

“What is it?” This gift is God and man in one person, exactly what humanity needed to deliver us from our greatest enemies: sin, death, and Satan. On the Festival of Christmas, we thank God for this greatest of gifts.