Romans 2:5 warns the wicked that by their stubbornness and impenitence, they are treasuring up wrath for the day of wrath and apocalypse of God’s judgment.

That “apocalypse” is important.  An apocalypse is an advent, but more importantly an unveiling.  It discloses what has been the case.  Judgment day is not so much (or not only) God’s making-right of everything, but the disclosure of His making-right.

The Judge of the earth does right, always and everywhere and in everything.  He does right.  But that right-doing is hidden until teh day of wrath and unveiling.