'Concubines' in the Bible

But to the sons of Abraham's concubines Abraham gave gifts. And while he [was] still living he sent them away eastward, [away] from his son Isaac, to the land of the east.

David took more concubines and wives from Jerusalem after he came from Hebron, and more sons and daughters [were] born to him.

The king went out with all his household {following him}, but the king left behind ten concubines to look after the house.

And Ahithophel said to Absalom, "Go to the concubines of your father whom he left behind to watch over the house, then all of Israel will hear that you made yourself odious to your father, and {all of your followers will be motivated}!"

Then they pitched a tent for Absalom on the roof, and he went [in] to the concubines of his father before the eyes of all Israel.

Then Joab came to the king's house and said, "Today you have humiliated the faces of all of your servants who have saved your life this day, and the life of your sons and your daughters, the life of your wives, and the life of your concubines,

David went up to his house in Jerusalem, then the king took the ten concubines whom he had left to look after the house, and he put them {under confinement}. However, he provided for them, but {he did not sleep with them}. So they were confined until the day of their death, like a lifetime of widowhood.

He had seven hundred princesses and three hundred concubines, and his wives turned his heart.

All these [were] the sons of David, besides the sons of the concubines. And Tamar was their sister.

And Rehoboam loved Maacah the daughter of Absalom more than all his wives and concubines (for he took eighteen wives and sixty concubines, and he fathered twenty-eight sons and sixty daughters).

In the evening she would go and in the morning she would return to the {second harem} {under the care of} Shaashgaz, the king's eunuch in charge of the concubines. She would not go back to the king unless the king delighted in her and she was called by name.

I also gathered to myself silver and gold--the royal and provincial treasuries. I acquired for myself male and female singers, as well as the delight of {men}, {voluptuous concubines}.

Sixty queens there [are], eighty concubines, and maidens beyond number.

My dove, {she is the one}; my perfect, {she is the only one}; she [is] {the favorite of} her mother who bore her. Maidens see her and consider her fortunate; queens and concubines praise her:

{When he tasted the wine}, Belshazzar commanded [that they] bring [the] vessels of gold and silver that Nebuchadnezzar his {predecessor} had taken from the temple that [was] in Jerusalem, so that the king and his lords, his wives and his concubines may drink from them.

Then they brought in the vessels of gold that they took from the temple, the house of God that [was] in Jerusalem, and the king and his lords, his wives and his concubines drank from them.

And [now] you have exalted yourself against the Lord of heaven, and the vessels of his temple you have brought in before you, and you and your lords, your wives and your concubines, have been drinking wine from them, and you have praised the gods of silver, gold, bronze, iron, wood, and stone that [do] not see and [do] not hear and [do] not know, but the God {who holds your life in his hand} and all of your ways {come from him}, you have not honored.