"You will trust in something or someone; that's part of being human. You will trust in...your spouse, your wealth, your loved ones, your cunning, or your health--or you will trust in the Lord. Trust in things that are untrustworthy, and you are trusting in quicksand. You are trusting in things that cannot sustain the weight of your trust. And fear, of course, will be the result. Trust in the Lord, and you are secure." - Ed Welch
So I guess that's not actually all that profound. People have been saying it for years ("On Christ the Solid Rock I stand, all other ground is sinking sand"). But something about the way Welch put it struck me. It's not just bad to trust in something/one other than God. That misplaced trust actually leads to fear. When afraid, grasping for something other than the Lord will make us more afraid because that thing/person cannot support the weight of our trust. Only God can. May we trust in him alone!
(I've recommended his work before, but again, Ed Welch has some of the best stuff I've ever read on fear and anxiety. His book Running Scared is excellent in this regard. The quote above comes from a workbook that condenses Running Scared into a 7 week study called When I Am Afraid. I'm not all the way through the workbook, but I highly commend both works to you.)