Adam Clarke on Song of Solomon 8:10

I am a wall, and my breasts like towers - I am become marriageable, and I stood in need of the defense I have now in my beloved; and as soon as I was so, and became pleasing in the eyes of my beloved, I was given to him in marriage, and have ever since found favor in his sight. As soon then as my sister is in my state, let a proper match be sought out for her. These expressions show the solicitude which the bride felt for her sister, and in her favor she wishes to interest her spouse.