'Children' in the Bible

But as many as received him, to them gave he the right to become children of God, even to them that believe on his name:

They answered and said unto him, Our father is Abraham. Jesus saith unto them, If ye were Abraham's children, ye would do the works of Abraham.

and not for the nation only, but that he might also gather together into one the children of God that are scattered abroad.

Little children, yet a little while I am with you. Ye shall seek me: and as I said unto the Jews, Whither I go, ye cannot come; so now I say unto you.

Jesus therefore saith unto them, Children, have ye aught to eat? They answered him, No.