what does the bible say?
In biblical times, it was common for people to greet each other, or to say goodbye, with a non-sexual kiss. Many people throughout the world still show non-sexual physical affection to those they are fond of, and to family members, by kisses on one or both cheeks in greetings. Other cultures prefer a handshake.
The New Testament mentions a holy kiss in several passages, emphasizing it as a display of unity, purity, and love rather than physical attraction or public affection. It signifies a greeting that is physically pure, morally blameless, and sincere, contrasting with Judas's deceitful kiss. For early Christians, it expressed brotherly love, unity, and acceptance, especially important for new believers ostracized by their families. While the practice of a holy kiss is not clearly mandated for modern Christians, Christians should be known by their love (John 13:35), and our interactions should be rooted in genuine, pure, and sincere agape love.