Romans 2:13-15

Young's Literal Translation

¹³ for not the hearers of the law [are] righteous before God, but the doers of the law shall be declared righteous: --

¹⁴ For, when nations that have not a law, by nature may do the things of the law, these not having a law -- to themselves are a law;

¹⁵ who do shew the work of the law written in their hearts, their conscience also witnessing with them, and between one another the thoughts accusing or else defending,