Romans 2:28

2:28 For a person is not a Jew who is one outwardly, nor is circumcision something that is outward in the flesh,

Romans 14:5

14:5 One person regards one day holier than other days, and another regards them all alike.¹ Each must be fully convinced in his own mind.

15:20 And in this way I desire to preach where Christ has not been named, so as not to build on another person’s foundation,

¹tn Grk “For one judges day from day, and one judges all days.”