No harm overtakes the righteous, but the wicked have their fill of trouble. – Proverbs 12:21
The context of this Proverb:
Proverbs 12:13-25
My thoughts:
While we can’t often control what happens to us, and it’s up to God in His Will as to that, we can control our actions and words. This proverb talks of the righteous not having 
harm overcome them and the opposite for the wicked. How can we interpret this? Well in the context of proverbs about how words affect us, the fill of trouble could be self-inflicted. The one who mistreats another could easily find a similar response right back.
Thanks for reading! Pete.
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Thoughts or questions? Have your say in the comments section!
Note: All scripture is taken from Bible.com and is the New International Version. I am using a commentary by John A. Kitchen for help with difficult concepts and words. Plus he has a real way with words!
Photo Attribution: Jochen Frey Used under Creative Commons BY-NC-ND 2.0
On Proverbs 