Ambrose of Milan

"You gave me no kiss, but she, from the moment she entered, has not ceased to kiss my feet." A kiss is a mark of love. How, then, can a Jew have a kiss, who has not known peace, who has not received peace from Christ when he said, "My peace I give you, my peace I leave unto you"? The synagogue has no kiss, but the church has, for she waited and loved and said, "Let him kiss me with the kiss of his mouth." She wished with his kiss to quench gradually the burning of the long desire that had grown with longing for the Lord's coming; she wished to satisfy her thirst with this boon.

But the church does not cease to kiss Christ's feet, and she demands not one but many kisses in the Song of Solomon, since like blessed Mary she listens to his every saying, she receives his every word, when the gospel or prophets are read, and she keeps all these words in her heart.