'Sister spouse' in the Bible

Thou hast emboldened me, my sister-spouse, Emboldened me with one of thine eyes, With one chain of thy neck.

How wonderful have been thy loves, my sister-spouse, How much better have been thy loves than wine, And the fragrance of thy perfumes than all spices.

A garden shut up is my sister-spouse, A spring shut up -- a fountain sealed.

I have come in to my garden, my sister-spouse, I have plucked my myrrh with my spice, I have eaten my comb with my honey, I have drunk my wine with my milk. Eat, O friends, drink, Yea, drink abundantly, O beloved ones!