One of the most appealing and strong resources for evangelism is the love we have for one another in the church. Jesus tells His followers to love one another in today's passage (13:34). Love is at the heart of God's existence (1 John 4:8), and it must also be at the heart of the church, His flesh. God cared so much about us that He sent His Son to die for us so that we could have a loving relationship with Him. We are overflowing with love for one another because we have been cherished by God.
Dear friends, since God so loved us, we also ought to love one another.
1 JOHN 4:11
Christ is at work in us, as shown by our shared affection. This is the only reason why people of all ages, genders, races, and socioeconomic groups will gather in the church. It's the only reason we'd pray for each other, bear each other's burdens, and love one another more than we love ourselves. Tertullian, a church parent, portrayed pagans marveling at the Christians around them, saying, "Look how they love one another!"
We can't show God's love if we're alone. Only as a holy community—as the church—do we have the ability to model the kind of winsome family love that Jesus commanded for the rest of the world. God will use our communion to invite our friends and neighbors to share this love life, just as the ghosts invited Ebenezer Scrooge to look through the holiday windows.
The love that Christians have for one another is one of the most appealing ways that the gospel is reflected in the world. Our acts of kindness—praying for one another, smiling at one another, taking casseroles, and sending birthday cards—attest to Christ's work in us and invite others to join us.