Greeting One Another

I conclude that it is the will of God for his children not just to do good things for each other, and not just to pray for each other or speak decently of each other—those are crucial and demand the power of the Holy Spirit to accomplish. But God's will is for more: "Love each other with brotherly affection." "Open your hearts wide to each other." "Feel for each other a kind of tender affection and longing that would naturally be expressed in a holy kiss of love.”
— John Piper