In previous posts I have carefully refrained from commenting on Romans 2:13 and its statement that the doers of the law will be justified.
Galatians 5:5-6, 2 Timothy 4:7-8, and Hebrews 11:7 also speak of righteousness in the context of the day of judgment.
In Matthew 5:20 Jesus at a pivotal point in His Sermon on the Mount utters the following serious warning…
There is a third passage which I believe uses the verb, to justify, to refer to the justification of the believer and his faith by his works.
The second passage which uses the verb, to justify, in a way similar to Matthew 12:37, with a different connotation than it has in Romans 3 and 4, and a way which is quite relevant to the idea of a future justification in the day of judgment is James 2:21-26.
Lee Irons in his article Romans 2:13: Is Paul Coherent? argues that Romans 2:13 is a hypothetical or “empty set” assertion.