Don't be quick to look down on people until you know the cross they have carried.
Do not be quick to dismiss people until you know what they have endured. Until you have know the fire they have walk through.
You may be the loudest Christain, but you cannot survive what a mere believer had survived. We should not overrate ourselves beyond measure. People have survived things and they never compromise.
"Are you he that should come or should we look for another"
That was John the Baptist speaking, the one who said "Behold the lamb of God that takes away the sin of the world.
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Pain can make people take back what they have said with conviction, because pain put conviction under trial. You have to be emotional intelligent to know when people are saying what they are saying, not because they mean it, but because pain has placed their conviction under trial.
We not justifying this. That is why the wife of Job told Job " Now that you are going through all this, curse God and die". And Job said he will not, meaning that his conviction has been tried and it is standing. John who said "Behold the lamb of God that takes away the sin of the world". He said "Go and ask him, I am no longer sure if he is still the Messiah, he should bring me out of prison".
There are many people saying "God is not existing", "God is not real", "God is not true", we are product of big bang theory, Heaven is this and that, because pain is putting their condition under trials. Sometimes not personal things they are going through, but what they have seen others going through. This people are very kind but they not have teaches that can guide them in the right path.
As a Christian, you have to go deep to the point that your conviction will not be easily doubted.