'Childless' in the Bible

And Abram saith, 'Lord Jehovah, what dost Thou give to me, and I am going childless? and an acquired son in my house is Demmesek Eliezer.'

'And a man who lieth with his aunt, the nakedness of his uncle he hath uncovered; their sin they bear; childless they die.

And a man who taketh his brother's wife -- it is impurity; the nakedness of his brother he hath uncovered; childless they are.

For though they nourish their sons, I have made them childless -- without man, Surely also, woe to them, when I turn aside from them.