Therefore, the promise comes by faith, so that it may rest on grace and may be guaranteed to all Abraham’s offspring—not only to those who are of the law, but also to those who are of the faith of Abraham. He is the father of us all.
Textus Receptus (TR) - Romans 4:16 >Διὰ τοῦτο ἐκ πίστεως, ἵνα κατὰ χάριν, εἰς τὸ εἶναι βεβαίαν τὴν ἐπαγγελίαν παντὶ τῷ σπέρματι, οὐ τῷ ἐκ τοῦ νόμου μόνον, ἀλλὰ καὶ τῷ ἐκ πίστεως Ἀβραάμ, ὅς ἐστι πατὴρ πάντων ἡμῶν —