The great duty of charity recommended : In a sermon preach'd at the Chapel of St. Ann's Kew-Green, on the 12th of May, 1721. Being the anniversary-day for solemnizing the consecration thereof. And publish'd at the request of the audience, for the benefit of the Charity-School at Brentford-Butts. By Lewis Stephens, A.M. rector of Chilbolton, and chaplain to the Right Honourable and Right Reverend the Lord Bishop of Winchester.