I have found a curious Ragna image which appears to be translated.
Interestingly enough (like all of this is), The words around the "Sword" are the same as NU-13's. Both probably say the same thing! If the Ragna image is accurate (It appears to be, The side translations seem to work with mine. I think this guy had a better image), it says:
"to err..." and "And it will be opened (to you)" - this is near the top.
"Ask, and it will be given to you; seek, and you will find; (knock, and it will be opened to you.) " - This is Matthew 7:7 - it is on the dark circle on Ranga's crest, on NU's crest the circle is white.
So someone's out there translating stuff. Feel free to appear!