'Perfect' in the Bible

W I sleep, but my heart is awake.A sound! My love is knocking!M Open to me, my sister, my darling,my dove, my perfect one.For my head is drenched with dew,my hair with droplets of the night.

But my dove, my virtuous one, is unique;she is the favorite of her mother,perfect to the one who gave her birth.Women see her and declare her fortunate;queens and concubines also, and they sing her praises:

The Lover to His Beloved: Turn, turn, O Perfect One! Turn, turn, that I may stare at you! The Beloved to Her Lover: Why do you gaze upon the Perfect One like the dance of the Mahanaim?