Yes, it probably is.
This is a genuine church sign (I'm correcting first post, which said it was a spoof - it's not). It's from a library of such signs held at www.churchsign generator.com (hit their link to "real church signs").
This one certainly expresses the view of some Christians, including, probably, Martin Luther: "Faith must trample all reason underfoot".
However, it's possible to construct fake signs too. If such childish humour appeals to you (as it does to me) go to www.churchsigngenerator.com