1 Thessalonians 5:26

Greet all the brethren with an holy kiss.

The holy kiss is a sacred greeting and a sign of fellowship among Christians. In the days of the apostolic instruction believers practiced it when they met, with brethren greeting brethren with a holy kiss and sisters greeting sisters with a holy kiss. It is appropriate when Christian friends part and when they meet again after weeks or months apart.

Given at a proper time and place, it has no appearance of evil.