The one thing missing from the article is whether this employee is in a "meet the public" sort of job. If he is, I would think the employer would have more discretion in restricting what he pins up on his board, due to the employer's interest in how the office is perceived by the public. If he only interacts with other employees, the employer would have less discretion.
This whole thing has become preposterous. Why would the "public" be offended or harmed by this employee's personal beliefs? And even if somebody does feel 'offended' by the little Biblical verses on his cubicle wall, why would anyone else give a rat's tail about the "poor victim's" alleged hurt feelings?
Should we allow our Constitutional rights to privacy and religious freedom to be overthrown by the liberals' pretentious sensitivities? Has everybody been brainwashed by the illogical and self-destructive sensitivity training the government has been saturating us with over the last 30 years? I just can't believe that we've sold God down the river like this, all in the name of fearing a reference to Christ might cause some non-Christian to "feel bad".