The "man" standing on the far left of this photo.

Jesus was deeply saddened by the coming destruction to the Jews and their temple.
God does not rejoice when a sinner goes to hell.
The prophets lamented the Sin of Isreal and the coming Judgments
This man does not know God. By his use of the words fags and his joy for the diseases that people will suffer from the toxic waste in the water he belays he has no love for his neighbor.
When I speak of sin I am accutely aware of my own and my failings before God. I am not righteous and holy and I thank God that he loved me enough to send chirst to die for me when I did not know him , when I did not care, and certainly on my own I would have never sought him. Christ came to save sinners not the self righteous and not those who boast of all that they have in God.
Can we know that we are saved yes -- but with that comes a knowedge that it has nothing to do with us, it has nothing to do with how much we pray, or how much we read the bible or how much we do good works.
But if Christ is in us, we will out of our heart seek to do a lot of all those things because of the overwhelming love that pours out from us.