Disability is, almost by definition, painful. If there isn’t physical pain, then there is the pain of being different, of being rejected by others, of everything just seeming to be harder than it needs to be. And permanent disability lasts a long, long time.
Where is God in this?
Paul Tripp, in Broken Bone Hymns:
Now, you have to ask, “Why would a God of love ever bring pain into the lives of the people he says he loves?”
The difficult things that you experience as God’s child that may seem like the result of God’s unfaithfulness and inattention or anger are actually acts of redemptive love.
You see, in bringing these things into our lives God is actually fulfilling his covenantal commitment to satisfy the deepest needs of his people.
And what is it that we need the most?
The answer is simple and clear throughout all of Scripture: more than anything else we need him.
The Works of God 
Amen! Thanks for that reminder!
Tribulation works patience, patience experience, experience hope and hope maketh not ashamed