Charles Wesley was suffering a bout of pleurisy in May, 1738, while he and his brother were studying under the Moravian scholar Peter Boehler in London. At the time, Wesley was plagued by extreme doubts about his faith. Taken to bed with the sickness, on May 21 Wesley was attended by a group of Christians who offered him testimony and basic care, and he was deeply affected by this. He read from his Bible and found himself deeply affected by the words, and at peace with God. Shortly his strength began to return. He wrote of this experience in his journal, and counted it as a renewal of his faith; when his brother John had a similar experience on the May 24, the two men met and sang a hymn Charles had written in praise of his renewal.