But does it do this? Can it really accomplish in the soul of a sinner this which it claims to do? Does it ever actually produce such a change of feeling, awaken such hopes, restore such peace, as it tells about? On this subject, believers are important witnesses. They profess to have tried the efficacy of these representations in their own experience. They tell the ungodly they have found this sense of pardon, have felt this peace, have rejoiced in those hopes which the gospel speaks of. They have come to Christ as the atoning sacrifice, and he has proved himself to be to them all he claimed to be. The work of grace in the hearts of Christians is such, that they can tell sinners what it is. They declare it in their songs of praise, their thanksgivings and prayers, and earnest love to their Redeemer. 2. Professing Christians are witnesses to the world as to what that _standard of morality_ is, which the precepts of the gospel require of its followers. They profess to live according to that standard. They have taken the commands of Christ to be their rule of duty, and they virtually tell others to judge of what the religion of Jesus Christ requires, by the way they live and act. They have undertaken to give a practical exhibition of what is the meaning of those Bible directions which comprise the sum of religious duty. The question with them is not what the world thinks to be right or wrong, not what public opinion approves or disapproves; but what does Christ command. This is their rule of duty; this is what they profess to live by. And the world understand it so. They therefore take what they find in Christians' lives and conduct to be what religion consists in. They care not to search for the letter of the precept in the Scriptures, so long as they have the living witness before them, who says he is showing it to them every day. Christians are such witnesses. They may well tremble at their position. But they have placed themselves in it. They have undertaken to be witnesses for Christ. Oh, it becomes them to be careful what they are saying. It becomes them to inquire what idea the world gets of Christ and his religion, from the way they carry themselves among their neighbors. Every one knows that example is more powerful than precept. Every professing Christian's example directly involves in it the honor of Christ, and the welfare of his cause. It is competent evidence, and the world takes it. That professor who lives in violation of Christ's commands, and by his example approves what the religion of the gospel forbids, is a perjured witness on the stand, and gives a false testimony.