“It is very right to endeavour,” said Schwartz, “by sound reasoning and argument to become convinced of the truth of divine revelation, but this is not sufficient. The chief cause of your unbelief is your own perverse will and inclination. You wish that the word of God may prove untrue for no other reason than this, that you may be allowed to live undisturbed in sin, but I declare to you that your understanding is convinced of the truth--your heart and will must be changed. Turn therefore with full purpose of heart to the living God and endeavour to obtain grace and pardon through the blood of his atonement; and watch and pray and you will find help. You must enter upon this most important business with great zeal and with a holy importunity.” It is stated that this advice was evidently put to some good test, for the listener went home greatly impressed, sent for one of his neighbours who was an enemy and freely forgave him, making reconciliation where there had been enmity and strife. One of his public services while in Ceylon was at Point Pedro at a spot which had become historic, for under an ancient tree there the famous Dutch evangelist Baldeus had first preached the Gospel to the natives in the seventeenth century. Schwartz was deeply impressed as he stood under the boughs of that old tree and proclaimed the same saving truths to the people. His letters are so full of interest and so self-revealing that from one written to his friend, Dr. Francke, dated 16th October, 1760, an extract must be given, giving his impressions of Ceylon.