In other words, I believe God is true and every man a liar.
Your blanket condemnation of all other folk reminds me of a tale I heard a long while ago:
One day, a traveller was walking from Leeds to York. As he was approaching the city, he noticed a farmer tending the ground beside the road. He greeted the farmer, and said: ‘Do you mind if I ask you a question?’
“Fire away!’ replied the farmer.
‘I’m moving to York, from Leeds’ said the traveller, ‘and I was wondering if you could tell me what sort of people I’ll find there?
‘Tell me,’ said the farmer, ‘what sort of folk live in Leeds?’
‘Dreadful,’ replied the traveller. ‘To be honest, I am glad to be away from the place. The city is full of hypocrites and liars; every last one. Completely untrustworthy, and altogether horrible!’
‘I’m very sorry to tell you,’ said the farmer, ‘but you will find that the folk of York are equally bad.’
The traveller hung his head despondently, and walked on.
A few months later, another traveller was journeying down the same road. He also came upon the farmer.
‘I’ve decided to up-stick and move from Leeds to York,’ said the traveller. ‘Any idea what sort of folk live there?’
‘Indeed I do,’ replied the farmer. ‘But first, tell me of the folk in Leeds.’
‘Ahh,’ said the traveller. ‘Wonderful people! Trustworthy, reliable and honest. They don’t always get things right, for sure; but they try hard, and are very supportive of each other. I shall miss them greatly.’
‘Put your mind at rest!’ said the farmer. ‘You will very quickly find that the folk of York are exactly the same.’