How To Sell A Bibles

Three boys look for a summer job. Their preacher agrees to let them sell Bibles door to door, though he's hesitant about hiring the third boy because he suffers from a speech impediment.  

After the first week of work they all meet at the church. The preacher asks the boys, “How many Bibles did you sell?” 

The first boy says, “35.” 

The second boy says, “75.”

The boy with the speech impediment says, “I-I-I s-s-sold 175.” 

The preacher is amazed and asks the boy how he did it.  

The boy says, “I-I-I t-t-told them to b-b-buy t-t-them, or I'd r-r-read it to t-t-them.”