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 1:19

1:19 because what can be known about God is plain to them, ¹  because God has made it plain to them.

[1:19]  ¹ tn Grk “is manifest to/in them.”