Ambrose of Milan

Christ, then, feeds his church with these sacraments, by means of which the substance of the soul is strengthened, and seeing the continual progress of her grace, he rightly says to her, "How comely are your breasts, my sister, my spouse, how comely they are made by wine, and the smell of your garments is above all spices. A dropping honeycomb are your lips, my spouse, honey and milk are under your tongue, and the smell of your garments is as the smell of Lebanon. …

On the Mysteries 9:55 ↗

Bede

And the scent of your ointments, etc. The scent of the Church's spiritual ointments is the fame of the gifts; of which it is written: Their voice has gone out unto all the earth, and their words to the ends of the world (Psalm XVIII). And when Mary Magdalene anointed the Lord with nard as a type of the holy Church, it is written: And the house was filled with the fragrance of the ointment (Matthew XXVI); where it is mystically signified that with the devout services of the Church, which are performed in honor of her Redeemer, the …

Commentary on the Song of Songs ↗

Robert of Tombelaine

What we said above concerning the breasts of the bridegroom, we consider can also be understood here when he speaks of the bride. 'And the fragrance of your ointments is above all spices.' By ointments, indeed, are understood those very virtues which arise from charity. For even the reprobate sometimes possess spices with which they give off fragrance, because they possess certain virtues and perform good works; but because they live without charity, nothing they do is pleasing in the sight of God. …

Commentary on the Song of Songs, Chapter 4 ↗