Romans 2:14-15 For when the Gentiles, which have not the law, do by nature the things contained in the law, these, having not the law, are a law unto themselves:

CKJV_Strongs⁽ⁱ⁾

14 G1063 For G3752 when G1484 the Gentiles, G2192 which have G3361 not G3551 the law, G4160 do G5449 by nature G3588 the things G3551 contained in the law, G3778 these, G2192 having G3361 not G3551 the law, G1526 are G3551 a law G1438 unto themselves:

15 G3748 Which G1731 show G2041 the work G3551 of the law G1123 written G1722 in G846 their G2588 hearts, G846 their G4893 conscience G4828 also bearing witness, G2532 and G3053 their thoughts G3342 meanwhile G2723 accusing G2228 or else G2532 G626 excusing G240 one another;)