Why didn’t the Son come in the flesh just outside Eden?  The erotic theology of the Song of Songs provides a possible hint.  Throughout the Song, the lovers admire each other’s bodies and express their longing desires to be together.   Union comes at the end of reciprocal arousal.  ”Let him kiss me with the kisses of his mouth,” the bride says at the outset.  ”How beautiful you are, my darling, how beautiful you are!” says the bridegroom.  But the bride doesn’t get her winekiss until later, until he takes her to his “house of wine” (2:4) and until his enters the locked garden and drinks of the wine, milk, and honey of her lips and mouth (4:11-5:1).  A period of intensifying desire precedes tasting and touching; distance, approach, distance, approach, repeated again and again before consummation.

The history of Israel is God’s foreplay with His bride, bringing her to a pitch of desire before He takes flesh and dwells with her.  Perhaps too this provides a way of describing the frenzy of Messianic excitement that Israel was undergoing in the first century.

God waits to send His Son because He is a good lover.