THE OPEN DOOR. (Trinity Sunday.) REV. iv. 1. "A door was opened in Heaven." When Dante had written his immortal poems on Hell and Purgatory, the people of Italy used to shrink back from him with awe, and whisper, "see the man who has looked upon Hell." To-day we can in fancy look on the face of the beloved Apostle, who saw Heaven opened, and the things which shall be hereafter. We have summed up the great story of the Gospel, and have trodden... more...