In the absence of any other proof, the thumb alone would convince me of God's existence.
Yet one thing secures us what ever betide, the scriptures assures us that the Lord will provide.
The best way to understanding is a few good examples.
My powers are ordinary. Only my application brings me success.
Atheism is so senseless and odious to mankind that it never had many professors.
A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.