John 6:37, 44-45, 65

All that the Father giveth me shall come to me; and him that cometh to me I will in no wise cast out.

No man can come to me, except the Father which hath sent me draw him: and I will raise him up at the last day. It is written in the prophets, And they shall be all taught of God. Every man therefore that hath heard, and hath learned of the Father, cometh unto me.

And he said, Therefore said I unto you, that no man can come unto me, except it were given unto him of my Father.