Puppies for Sale

A little boy was selling puppies on a sidewalk when two men walked by. "What kind of puppies are they?" 

The boy replied, "these are Pentecostal puppies." 

Two weeks later they came by again and said, "See ya still have them Pentecostal pups." 

The boy replied, "These are Brethren puppies." 

"I thought you said they were Pentecostals,"

The boy said, "That's before their eye's were opened!"