“But what about you?” Jesus asked. “Who do you say I am?”
Peter answered, “You are the Messiah.”

— Mark 8:29

Who do you say Jesus is? A defining question – a life-giving question for those who believe. C.S. Lewis famously said that people had to choose between three options in order to respond to this millennia old question with integrity: Jesus is either a Liar, a Lunatic, or Lord. The claims Jesus made don’t allow for us to simply take the easy route and say he was a good teacher. No, Jesus allowed himself to be called the Messiah, the Son of God, the Saviour of all nations. So either, Lewis proposes, he was insane (lunatic); that is, he was deluded and was in fact crazy. He was an incredible deceiver (liar), or he truly was whom he claimed to be – Lord; the Son of God, the Saviour.

This passage is right in the middle of the Gospel of Mark. It is the defining point of Jesus’ ministry and indeed, a defining moment for his disciples. What do they actually think about the man they are following? Peter leads the way by replying correctly: You are the Messiah, but what does that belief mean? How does our belief in Jesus as God’s Son impact our daily life? As Christians we do not simply include Jesus’ teachings alongside some of our other favourite writers or thinkers. Our worldview changes because of our faith in Jesus Christ. All we do, think, and say is affected by our obedience to Jesus. We bow the knee to no other but Christ alone.