'Offspring' in the Bible

And Eli would bless Elkanah and his wife, and he said, "May Yahweh give you an offspring from this woman in place of the petitioned [one] that she requested from Yahweh." Then they went to their home.

But one man of your family will not be cut off by my hand, and his eyes will be made dark, and grief will be in his heart: and all the offspring of your family will come to their end by the sword of men.

Jonathan then said to David, “Go in the assurance the two of us pledged in the name of the Lord when we said: The Lord will be a witness between you and me and between my offspring and your offspring forever.” Then David left, and Jonathan went into the city.