“What reason do I have to care about the incarnation?” Here are three to get you started.
Because of the incarnation, our sins can be atoned for. In order to be blamed for His people’s sin, Jesus had to represent His people. As a man, Christ could be justly blamed for His people’s sin, because He could reasonably represent them on the cross in judgment. If Christ was not a man, it would be inappropriate for Him to suffer on behalf of sinful men.
Because of the incarnation, evil men will be properly judged. One excuse the wicked might have: “God, You gave us rules, but You don’t know what it’s like to be a man. Is it not obviously that Your Law is unreasonable, because no man has ever kept it?!” On judgment day you will not hear this excuse – because all men will be judged by one of their own. Upon God’s throne will sit a man Who Himself kept the Law perfectly, proving the only thing keeping people from obeying God was their wicked hearts.
Because of the incarnation, our faith will be made sight. “God is spirit” (John 4:24) and therefore invisible (Colossians 1:15). The astounding grace of the incarnation is that in Christ God is represented and manifest perfectly (John 14:9), so when you see Him you see God. Further, because Christ’s incarnation is eternal, you will always see God. God’s grace, at the root, is His self-revelation. What greater gift will there be than to behold His glory perfectly forever (Revelation 22:4)?