'Sons' in the Bible

And it cometh to pass, in the days of the judging of the judges, that there is a famine in the land, and there goeth a man from Beth-Lehem-Judah to sojourn in the fields of Moab, he, and his wife, and his two sons.

And the name of the man is Elimelech, and the name of his wife Naomi, and the name of his two sons Mahlon and Chilion, Ephrathites from Beth-Lehem-Judah; and they come into the fields of Moab, and are there.

And Elimelech husband of Naomi dieth, and she is left, she and her two sons;

And Naomi saith, 'Turn back, my daughters; why do ye go with me? are there yet to me sons in my bowels that they have been to you for husbands?

Turn back, my daughters, go, for I am too aged to be to a husband; though I had said, There is for me hope, also, I have been to-night to a husband, and also I have borne sons:

and he hath been to thee for a restorer of life, and for a nourisher of thine old age, for thy daughter-in-law who hath loved thee -- who is better to thee than seven sons -- hath borne him.'