神 is built from the 礻 (altar / spirit (left)) and 申 components.
It reads シン like 申, as do 請, 伸, and 紳 — learn 申 once and the family's reading comes with it.
A common word using 神 is 神社 (じんじゃ), meaning “Shinto shrine”.
Don't confuse it with 社, 祖, 祝, and 申.