Einstein was NOT religious at all.

http://www.positiveatheism.org/hist/quotes/einstein.htm

It was, of course, a lie what you read about my religious convictions, a lie which is being systematically repeated. I do not believe in a personal God and I have never denied this but have expressed it clearly. If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it.
-- Albert Einstein, 1954, from Albert Einstein: The Human Side, edited by Helen Dukas and Banesh Hoffman, Princeton University Press

Scientific research is based on the idea that everything that takes place is determined by laws of nature, and therefore this holds for the action of people. For this reason, a research scientist will hardly be inclined to believe that events could be influenced by a prayer, i.e. by a wish addressed to a Supernatural Being.
-- Albert Einstein, 1936, responding to a child who wrote and asked if scientists pray. Source: Albert Einstein: The Human Side, Edited by Helen Dukas and Banesh Hoffmann