John 1:12; John 8:39; John 11:52

John 1:12

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

John 8:39

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

John 11:52

52 And not for that nation only, but that also he should gather together in one the children of God that were scattered abroad.