Many people are very proud of their religion and go out of their way to tell people that they are in good moral standing due to their religion. This is excellent that they feel this way, but one word of advice - Do Not Brag About Being a Christian to Your Atheist Boss.
You see often atheists believe that those who are of a strong religious background use it as a crutch. Atheists see believers as those with weak moral values, needing a religion to remind them what is right and what is wrong. It is interesting that folks believe that one needs to be a certain religion to have a moral foundation. An atheist might say; That is the most silly comment I have ever heard?
The atheist believes that this comment about believers having a moral foundation above the rest is absolutely ridiculous, indeed it is the exact opposite in their opinion. They reason that if you need a religion to help you know right from wrong, then you do not have an actual moral foundation of self, but it comes from an external source of fear of a god or denial of heaven or fear of hell or not getting free toys from Santa.
The atheist does not see why others cannot see this, as they say it is so obvious. You are either good or bad, regardless of the team you play on or religion you believe. Perhaps this will help you understand your atheist boss and understand why he believes you have low-self-esteem and a problematic personal character and ethics boundary.