You no longer serve the law as a servant, you serve the Father as a son. Like Father, like son.
This means what you are now is defined by your relation to the Father. He has made you a son by sending the Spirit of His Son into you. Like Father, like son.
His Spirit in you cries out Abba Father! and so you know you are a son. Your worth is now based on His Fatherhood.
Continued in COMMENTS