en_tn_lite_do_not_use/rom/02/15.md

Paul continues his imaginary argument with a Jewish person.

By this they show

"By naturally obeying the Law they show"

the actions required by the Law are written in their hearts

Alternate translations: "God has written on their hearts what the Law requires them to do" or "They know exactly what the Law commands them to do." (See: rc://en/ta/man/translate/figs-idiom)

required by the Law

This can be translated with an active verb: "the Law requires" or "that God demands through the Law."

bears witness with them, and their thoughts either accuse or defend themselves

"tells them if they are disobeying or obeying God's law"

on the day when God will judge

This finishes Paul's thought from Romans 2:13. This could be translated as a new sentence: "This will happen when God judges."