God does give us more than we can handle

Watching a sermon on TV from Bishop TD Jakes today and words he said struck me;
 he said, " I used to tell people that God wouldn't ask you to do things that you could not do" and then he said, "But that's not true"--He then said,

"God will always ask you to do things that you can't do ",  
"And that's how you know it's God asking you to do it".

I have a real hard time with the saying 'God doesn't give you more than you can handle",  because living this life is much more than we can handle and it has been this way since Alec was first diagnosed and ultimately not having  Alec our arms is way beyond what we can handle.

I can't say I understand what it means that this is how we know it is God asking us to live and endure more than we can handle, and why God asks us to do it,  but having a Bishop validate the truth-- that it is completely untrue that we are living without Alec here physically  because we can handle it.
Because us and many others are living well beyond with what we can handle.