_Speak from a full heart_. The lover cannot but speak about his love; the painter can do no other than transfer to canvas the conceptions that entrance his soul; the musician is constrained to give utterance to the chords that pass in mighty procession through his brain. "We cannot but speak the things that we have seen and heard." Does it seem difficult to have always a full heart? Verily, it is difficult, and impossible, unless the secret has been acquired of abiding always in the love of God, of keeping the entire nature open to the Holy Spirit, and of nourishing the inward strength by daily meditation on the truth. We must close our senses to the sounds and sights around us, that our soul may open to the unseen and eternal. We must have deep and personal fellowship with the Father and the Son by the Holy Ghost. We must live at first-hand on the great essentials of our faith. Then, as the vine-sap arises from the root, its throb and pulse will be irresistible in our behaviour and testimony. We shall speak true things about Jesus Christ. Our theme will be evermore the inexhaustible one of Christ--Christ, only Christ--not primarily the doctrine about Him, or the benefits accruing from fellowship with Him, but Himself. Thus, some day, at your burying, as men turn homewards from the new-made grave, and speak those final words of the departed, which contain the most unerring verdict and summing-up of the life, they will say, "He will be greatly missed. He was no genius, not eloquent nor profound; but he used to speak about Christ in such a way that he led me to know Him for myself: I owe everything to him. He did no miracle; but whatever he said of Jesus was true." III. THE POWER OF POSTHUMOUS INFLUENCE.--John had been dead for many months, but the stream he had set flowing continued to flow; the harvests he sowed sprang into mature and abundant fruitage; the wavelets of tremulous motion which he had started circled out and on. How many voices are speaking still in our lives--voices from the grave! voices from dying beds! voices from books and sermons! voices from heaven! "Being dead, they yet speak." Let us live so that, when we are gone, our influence shall tell, and the accents of our voice linger. No one lives or dies to himself. Each grain on the ocean-shore affects the position of every other. Each star is needed for the perfect balance of the spheres. Each of us is affecting the lives of all that are now existing with us in the world, or will exist. To untold ages, what we have been and said will affect all other beings for good or ill. We may be forgiven for having missed our opportunities, or started streams of poison instead of life; but the ill effect can never be undone.