First of all we need to ask, Is it Biblical? I was asked by some people in our church where that idea was found in the Bible. I gave it a little thought and said, “I don’t think it is in the Bible”. Perhaps you can land at the thrust of the sentiment from Romans 8:28:
“And we know that for those who love God all things work together for good, for those who are called according to His purpose.”
Still, I don’t like that statement. I used to, but not anymore. I think a more Biblical statement would be “God won’t give you more than *He* could handle.”
The first statement places the emphasis on us and our strength and ability to persevere. The second statement focuses on God and His strength and ability to keep us. Trials are given to us for various reasons. Some to test us, some to discipline us, but all for God’s glory. When we face hardship, our focus should not be on what “we” can handle. Instead, we must focus on what “God” can handle (which is everything!). It is far better to place your confidence in the omnipotent, omnipresent, omniscient, sovereign Lord, than to think about what you can and can not handle (which is nothing apart from Him!).
Hammer & Anvil 
Well said…couldn't agree more! I often tell people that God does indeed give you more than you can handle. But then he supplies you with the grace to handle it. The key is, he often wants to bring us to a point where we specifically realize how helpless we are, driving us all the more close to him. Pascal once said something to the effect of, "There is no finer place for the Church to be than when She has no place left to turn to but to God." So true. If only we would turn to him sooner!Thanks again and blessings to you.
Amen. The Lord is seeking our dependence. When we are weak, then we are strong. We always have to fight the tendency of being man (me)-centered instead of Christ-centered. Hardships and trials place us exactly where we need to be.