申 is built from the 十 and 口 components.
It belongs to a phonetic family with 神, 請, 伸, and 紳 — they share the 申 component and the reading シン.
A common word using 申 is 申す (もうす), meaning “-- extra-modest (humble) expression for 言う (いう) --”.
Don't confuse it with 甲, 由, 田, and 神 — 田 closed; 由 pokes out the top; 甲 out the bottom; 申 both