Romans 2:13-15

¹³(for it is not the hearers of the law who are righteous before God, but the doers of the law shall be justified;

¹⁴for whenever Gentiles, who do not have the law, by nature do what the law requires, these, not having the law, are a law unto themselves,

¹⁵who show the work of the law written in their hearts, their conscience witnessing with them, and among themselves their thoughts accuse or even defend them),