It all looks good. Except on the inside - you're just not so sure. You wish you could be, but you're not. Doubt keeps knocking on the door. Spiritual discouragement seems like a grey February cloud that doesn't blow away.
Faith feels like a dim light with a battery that's almost empty.
Notice how Jesus changes gears in verse 16. He's taken the time to send a message of encouragement back to doubting John. And He has sung the praises of John. But then Christ slams things into overdrive. Instead of gentle words, He pours out a torrent of condemning words.