'Children' in the Bible

They answered and said to him, 'Our father is Abraham;' Jesus saith to them, 'If children of Abraham ye were, the works of Abraham ye were doing;

and not for the nation only, but that also the children of God, who have been scattered abroad, he may gather together into one.

Little children, yet a little am I with you; ye will seek me, and, according as I said to the Jews -- Whither I go away, ye are not able to come, to you also I do say it now.