I believe that this is the pulpit at Luther’s church in Wittenberg where he preached, some say, eveyday.  That is a lot of preaching.  Luther had some thoughts on preaching and preachers from 1 Corinthians 13 that speaks volumes about witness, mercy and life together.

…………..though I had ability to teach and to preach with power beyond that of any man or angel, with words of perfect charm, with truth and excellence informing my message–though I could do this, “but have not love [charity],” and only seek my own honor and profit and not my neighbor’s, “I am become sounding brass, or a clanging cymbal.” In other words, “I might, perhaps, thereby teach others something, might fill their ears with sound, but before God I would be nothing.” As a clock or a bell has not power to hear its own sound, and does not derive benefit from its stroke, so the preacher who lacks love cannot himself understand anything he says, nor does he thereby improve his standing before God. He has much knowledge, indeed, but because he fails to place it in the service of love, it is the quality of his knowledge that is at fault. I Cor 8, 1-12. Far better he were dumb or devoid of eloquence, if he but teach in love and meekness, than to speak as an angel while seeking but his own interests.

He rounds it off with this last paragraph……….

As to rank, faith only, but the Word, surpasses love; for the Word is the power of God unto salvation to all that believe. Rom 1,16. Yet the Word must pass. But though love is the fruit of the Word and its effect, it shall never be abolished. Faith possesses God himself. It possesses and can accomplish things; yet it must cease. Love gives and blesses the neighbor, as a result of faith, and it shall never be done away.  Now, Paul’s statement that love is greater than faith and hope is intended as an expression of the permanence, or eternal duration, of love. Faith, being limited as to time comparison with love, ranks beneath it for the reason this temporary duration. With the same right I might say that the kingdom of Christ is greater upon earth than Christ. Thereby I do not mean that the Church in itself better and of higher rank than Christ, but merely that covers a greater part of the earth than he compassed; he was here but three years and those he spent in a limited sphere, whereas his kingdom has been from the beginning and is coextensive with the earth. In this sense, love is longer and broader than either faith or hope. Faith deals with God merely in the heart and in this life, whereas relations of love both to God and the whole world are eternal. Nevertheless, as Christ is immeasurably better and higher and more precious than the Christian Church, though we behold him moving in smaller limits and as a mere individual, so is faith better, higher and more precious than love, though its duration is limited and it has God alone for its object.