There are doors of opportunity that only God can open. When God opens a door for us, we can be assured that it will stay open. It does not matter what opposition or challenges we may face in an attempt to walk through the door. Even though the opposition and challenges can make it seem as though the door is closing or closed, know that the door will remain open until God says otherwise; all we must do is walk through it.
Revelation 3:7b-8 What he opens no one can shut, and what he shuts no one can open. I know your deeds. See, I have placed before you an open door that no one can shut, I know that you have little strength, yet you have kept my word and have not denied my name.
~By Faith, Walk Through The Door!