God knows exactly when to withhold or to grant us any visible sign of encouragement. How wonderful it is when we will trust Him in either case! Yet it is better when all visible evidence that He is remembering us is withheld. He wants us to realise that His Word – His promise of remembering us – is more real and dependable than any evidence our senses may reveal. It is good when He sends the visible evidence, but we appreciate it even more after we have trusted Him without it. And those who are the most inclined to trust God without any evidence except His Word always receive the greatest amount of visible evidence of His love.
-Charles Gallaudet Trumbull