Defacing property, usually the walls and pillars of underpasses, with an evangelistic message, such as "Jesus Saves" or "WWJD", usually done in graffiti form using spray paint.

Vandalizing public property, from a bridge to something as petty as a road sign. Extremists will scrawl an evangelistic message, for example "Jesus Saves" or "I love Christ", usually done in graffiti form using spray paint.
Meant to look charming and obedient to 'god, it's really only a childish shout, an attempt to shame people who do not believe in their god.
There are people out there that spring out of bed early in the morning, not to work or improve their life... but with an agenda to indoctrinate as many other people they can to their nutty club house.

Vandalism for the sake of the spread of the gospel of Jesus Christ