What is the point of being religious and a horrible person?

I used to work with this very difficult person!

He was a senior consultant and one of the roles of a good senior consultant is to guide and mentor the juniors in the team. This guy would fume and get so angry when you had questions for him. He would constantly try to correct your grammar or speech and he did it in such a condescending way that you never felt good afterwards.

He didn't just treat me like this but also his Customers. People started to despise him and his rudeness didn't go unnoticed. Sadly, he got what he deserved and was abruptly removed from the project by the Customer.

One day, we had lunch together and when his food arrived, he started muttering under his breath. Me thinking that something was wrong, interrupted him and said: "What's wrong with your food? Everything alright?"

So turns out, he was saying grace and I had just interrupted that. Very awkward indeed.. He figured that I wasn't religious and didn't want to force me to listen to him saying grace out loud. Quite considerate of him but I told him that he can speak up and say grace out loud.

He said grace and that was the end of it.

A few weeks went by and he was constantly giving me grief at work. He was rude and impatient and cut me out in mid-sentence in meetings with the Customer. The Customer gazed at me with an open mouth and we just exchanged a glance like "yeah, this guy is rude...", we shared a common understanding!

Later on, we were driving home and he rang his wife and put it on loudspeaker. He sounded like a different person, very relaxed and patient and then he proceeded to pray with her. He thanked God for all the wonderful things in his life, and strength for all the upcoming struggles and he prayed for his family etc.

It was very awkward for me because I was seeing a completely different side of him and I don't know if his wife even knew that I was listening to the conversation.

When I went to bed that night, I thought what's the point of being so religious if you go around treating people horribly and with so much disrespect?

I am no expert on religion but I don't get it...

And I hope it's crystal clear in my post that I have nothing against people that are religious. I just can't understand this behavior. It feels like a conflict of interest.

Thoughts?

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