All believers are clothed with the righteousness of Christ - the Sun.
Why do you think Christ being he woman's covering is a misapplication of scripture?
Because you are attempting to apply Mal.4:2 just because it has the word "sun" in it, but doesn't mention any of the other symbols.
I have already explained all this to you and provided the scriptures. If you can't see that the woman of Revelation 12 figuratively represents the nation Israel, then believe whatever you will.
The symbols of the sun, moon and stars mentioned in Genesis 37 identify the woman of Revelation 12 with the same symbols as figuratively representing the nation Israel.