NET
15 They show that the work of the law is written in their hearts, as their conscience bears witness and their conflicting thoughts accuse or else defend them,
Darby
15 who shew the work of the law written in their hearts, their conscience also bearing witness, and their thoughts accusing or else excusing themselves between themselves;)
KJV
15 Which shew the work of the law written in their hearts, their conscience also bearing witness, and [their] thoughts the mean while accusing or else excusing one another;)