A Baptist couple decide that they want to get a dog. As they are walking down the street in town, they notice that a sign in the pet shop is advertising "Christian Puppies." Their interest piqued, they go inside.
"How do you know they're Christian puppies?"
"Watch," says the owner, as he takes one of the dogs and says, "Fetch the Bible." The dog runs over to the desk, and grabs the Bible in its mouth and returns. Putting the Bible on the floor, the owner says, "Find Psalm 23." The dog flips pages with its paw until he reaches the right page, and then stops. Amazed and delighted, the couple purchase the dog and head home.
That evening, they invite some friends over and show them the dog, having him run through his Psalm 23 routine. Impressed, one of the visitors asks "Does he also know 'regular' commands?"
"Gee, we don't know. We didn't ask," replies the husband.
Turning to the dog, he says, "Sit." The dog sits. He says, "Lie down." The dog lies down. He says "Roll over." The dog rolls over.
He says "Heel." The dog runs over to him, jumps up on the sofa, puts both paws on the owner's forehead and bows his head.
"Oh look!" the wife exclaims. "He's PENTECOSTAL!"