The overarching theme of Advent is the coming of Jesus Christ, both in the manger of Bethlehem at his first coming, and in the clouds of glory at his second coming. That’s why the traditional lectionary readings of the season can feel joltingly at odds with our quaint Christmastime expectations. As one devotional writer puts it, “Rather than holly and candlelight, we read of end-times horrors. Instead of rejoicing angels, we begin with a prophet calling loudly for repentance. These passages shock us out of our cozy mindset to remind us that Jesus is the Mighty God.”
Indeed, the Savior whose birth we are preparing to celebrate is the very Son of Man who will one day return at the end of the age in power and great glory. In his famous Olivet Discourse, Jesus reminds his people he will come to earth again one day (Matthew 24:36-41). It will be a secret day—because only the Father knows when it will take place (v. 36). It will be a surprising day—because everything in life will be unfolding as it usually does (vv. 37-39). It will be a separating day—because some will be taken, and some will be left (vv. 40-41).
Jesus then instructs his followers on how to stay prepared for his return (Matthew 24:42-44). They are to be watchful—as a person deeply longing to reconnect with a loved one (v. 42). They are to be diligent—as homeowners working to protect what is most valuable to them (v. 43). They are to be ready—as a servant who would be unashamed by his master’s surprise return (v. 44). In short, God’s people don’t just wait for Christ’s return, they prepare for it. That’s because the child in the manger is actually the Mighty God whose kingdom will never end.
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