Faithful are the wounds of the one who loves; but importunate the kisses of the one who hates (Proverbs 27: 6)

We associate the kiss as a sign of affection such as love, affection, tenderness and even thanks.

The latter was expressed by a sinful woman whom Jesus forgave, humbled herself to the maximum, watered the teacher's feet with her tears and rinsed them with her hair; He kissed her feet and anointed them with the best perfume of the time.
But there are also empty kisses laden with hypocrisy and betrayal, better known as the Judas kiss, which became an echo, in every betrayal story that reminds us of the malignancy of our own flesh.
Judas Iscariot reminds us of the horrible feelings that can hide in our hearts.
There is a saying ... faces that we see hearts that we do not know, this does not apply to Jesus because he is God and nothing is hidden from him, but it is necessary that the Scriptures are fulfilled. (Luke 22:48)

God loves people with good feelings, so it is necessary that, as new creatures, we act like children without malice or bad thoughts towards our neighbor, if you are going to kiss yourself, check it first.