Ned Flander's Wikipedia Description

This wikipedia article on Flanders is really thorough and articulates my thoughts on Flanders as evangelical iconic representation.

Here's a sample:

Nedward "Ned" Flanders (circa 1939?- ) is a fictional character on The Simpsons, voiced by Harry Shearer. Ned, along with the rest of his family, is a devout Christian, and is often used to satirize Christian fundamentalism, as well as the "niceness" of doggedly upbeat born-again evangelicals. Homer Simpson once said that Ned is even holier than Jesus...

Despite his firm religious beliefs, Ned is quite timid and often insecure. He is obsessed with following the Bible as literally as possible, "even the stuff that contradicts the other stuff" and is easily shocked when someone challenges his beliefs. This leads to his frequent calls to Reverend Lovejoy ("I... I think I'm coveting my own wife!") who gets increasingly frustrated with Flanders ("Ned...have you thought about one of the other major religions? They're all pretty much the same."). His sons are very sheltered and raised in an extremely strict climate of Christian morality. In one episode, it is revealed that they "don't believe in Flu shots". Most entertainment enjoyed by the family involves religion in some way. For instance, the family has at least five different Trivial Pursuit sets relating to different versions of the Bible. They were also part of a church bowling team called the "Holy Rollers". One of his children's stories concludes "And Harry Potter and all his wizard friends went straight to Hell, for practising witchcraft." Also, though they have satellite TV, nearly all of the 230 channels are blocked out. Despite all this, Ned still holds a special reverence for the Beatles, remarking to Homer: "Of course I was into the Beatles. They were bigger than Jesus!," in reference to John Lennon's controversial remarks. He has collected many Beatles-related items, including vintage records, novelty Beatles-themed soda cans, Beatles bobble-heads, the identical suits the band wore during their Ed Sullivan Show appearance and a cardboard yellow submarine.
Despite being timid, Ned Flanders can sometimes fight for what he believes in, e.g. when Homer and Bart became Roman Catholic, which makes him also religiously intolerant: after having shaken a Catholic priest's hand in The Father, The Son, and The Holy Guest Star he made a "note to self" to get his hand "re-blessed". In the same episode, Bart also tells him he wants to convert to Judaism, and Ned took out a bottle of chloroform. He also showed his "soft anti-semitism" in the episode "A Star is Born-Again", in a day-dream about Hollywood's wickedness: Rod and Todd are in a Mercedes with two gorgeous women and say that they're movie producers ...and Jewish. When Lisa converted to Buddhism he ordered Rod and Todd into an underground shelter, telling them that they may never return to the surface.
It should be noted that despite his occasional intolerance towards other religions and beliefs, he is still honest and sincere in carrying out many of the Christian doctrines of charity, kindness and compassion. He spends every Wednesday working at the Springfield homeless shelter and soup kitchen, and reading to sick children at the hospital (he has met Moe Szyslak also looking after the children there), and is rigorously honest and upright, even going so far as to spend almost an entire day giving a Leftorium customer the extra change Ned forgot to give him by mistake. Ned is also very selfless and brave, risking his life to save Homer from a burning housefire, and even donating one of his kidneys and lungs to whoever asks for them ("First come, first served", he says). Despite his obsession with the rules and regulations of Christianity, Ned Flanders is still a generally good-natured and kind-hearted man who tries to follow what Jesus taught.

Flanders' religious denomination (along with that of Rev. Lovejoy) is a matter of much speculation among fans. In The Father, The Son, and The Holy Guest Star Rev. Lovejoy states that they will bring Bart and Homer back to the One True Faith: "The Western Branch of American Reformed Presby-Lutheranism".
Despite his religious fervor, or perhaps because of it, in Treehouse of Horror IV (outside the usual continuity of the show) he was "revealed" to actually be the Devil. ("It's always the one you least suspect!") He also participated in "Race for the Cure - of homosexuality" during one of the Halloween episodes.

In the "Team Homer" Episode, Ned bowls with his right hand.
He also has no airbag in his car, because "the church opposes it for some reason". This is contradicted in the episode Much Apu About Nothing when his car's airbag deploys after swerving out of the way of the bear.