This is talking about being born-again spiritually. Not of blood or flesh, which is when we were born of our mother.The reason they fight for the faith, is they 'were born of God'
John 1:12-13
But as many as received Him, to them He gave the right to become children of God, even to those who believe in His name, who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.
Being born-again spiritually is our being born into and adopted into the family of God. Which is stated in the verse 'He gave the right to become children of God'.
Not anything like your synopsis.
Upvote
0