Luke 22:47 And while he yet spake, behold a multitude, and he that was called Judas, one of the twelve, went before them, and drew near unto Jesus to kiss him.
Mat 26:48 Now he that betrayed him gave them a sign, saying, Whomsoever I shall kiss, that same is he: hold him fast.
Mat 26:49 And forthwith he came to Jesus, and said, Hail, master; and kissed him.
Luke 22:48 But Jesus said unto him, Judas, betrayest thou the Son of man with a kiss?
It was a customary greeting to kiss a friend upon meeting him.
2 Cor 13:12 Greet one another with an holy kiss.
In no way was this a holy kiss, it was the kiss of a betrayer. Jesus is holy, but Judas betrayed Jesus with a kiss. A pretend friend and a pretend kiss.
Prov 27:6 Faithful are the wounds of a friend; but the kisses of an enemy are deceitful.
Remember the woman of the street who anointed Jesus' feet in the Pharisee's house?
Luke 7:45 Thou gavest me no kiss: but this woman since the time I came in hath not ceased to kiss my feet.
People of God, beware of deceitful kisses. Do not give your heart to a non believing person. He or she may seduce you with sweet words and kisses, but their heart may be full of their own lust. They are only looking for their own pleasure or gain at your expense. Beware of the Judas Kiss, the betrayer, seeming to be your friend, but serving satan through their lust.