'Offspring' in the Bible

Adam had relations with his wife again; and she gave birth to a son, and named him Seth, for, she said, “God has appointed me another offspring in place of Abel, for Cain killed him.”

also of the birds of the sky, by sevens, male and female, to keep offspring alive on the face of all the earth.

And Abram said, “Since You have given no offspring to me, one born in my house is my heir.”

now therefore, swear to me here by God that you will not deal falsely with me or with my offspring or with my posterity, but according to the kindness that I have shown to you, you shall show to me and to the land in which you have sojourned.”

Then Judah said to Onan, “Go in to your brother’s wife, and perform your duty as a brother-in-law to her, and raise up offspring for your brother.”

Onan knew that the offspring would not be his; so when he went in to his brother’s wife, he wasted his seed on the ground in order not to give offspring to his brother.

But your offspring that have been born after them shall be yours; they shall be called by the names of their brothers in their inheritance.