'Sisters' in the Bible

His sons used to go and hold a feast in the house of each one on his day, and they would send and invite their three sisters to eat and drink with them.

Then all his brothers and all his sisters and all who had known him before came to him, and they ate bread with him in his house; and they consoled him and comforted him for all the adversities that the Lord had brought on him. And each one gave him one piece of money, and each a ring of gold.