'Sister' in the Bible

“You have made my heart beat faster, my sister, my bride;You have made my heart beat faster with a single glance of your eyes,With a single strand of your necklace.

“How beautiful is your love, my sister, my bride!How much better is your love than wine,And the fragrance of your oilsThan all kinds of spices!

“A garden locked is my sister, my bride,A rock garden locked, a spring sealed up.

“I have come into my garden, my sister, my bride;I have gathered my myrrh along with my balsam.I have eaten my honeycomb and my honey;I have drunk my wine and my milk.Eat, friends;Drink and imbibe deeply, O lovers.”

“I was asleep but my heart was awake.A voice! My beloved was knocking:‘Open to me, my sister, my darling,My dove, my perfect one!For my head is drenched with dew,My locks with the damp of the night.’

“We have a little sister,And she has no breasts;What shall we do for our sisterOn the day when she is spoken for?