BOTH JUDAH AND EPHRAIM ARE TO FOLLOW TORAH

1 Corinthians 7:18 Is any man called being circumcised [from Judah]? let him not become uncircumcised. Is any called in uncircumcision [from Ephraim]? let him not be circumcised.

1 Corinthians 7:19 Circumcision is nothing [being of Judah] and uncircumcision is nothing [being of Ephraim] but the keeping of the commandments of God [following Torah]