Luke 19:41 Now as He drew near, He saw the city and wept over it,
When Jesus came to look over Jerusalem He stopped and wept at the sight. Not at the sight of a built up city but at the knowledge of all the evil and sin the city was hiding.
We cannot see sin and evil, but we can see the results of them. We cannot see good either, but again we see the results of it.
Jesus had special knowledge of what was going on because He is the Son of God and knew these things.
We need to depend on seeing the results of things; so set an example and allow people to see the results of God in your life!