The thought of “retirement” in the traditional sense doesn’t make a lot of sense to me. There is a part of me that hopes I can continue preaching and ministry to the very end. I was encouraged to read of Calvin’s passion to preach as long as his body would hold out:
Calvin loved preaching, and he continued preaching nearly to the end of his life. He died on May 27, 1564. We read that near the close of his life, when he was beset with infirmities and could not walk, he was carried in a chair to his well-loved and familiar pulpit. Colladon, who wrote a biography of Calvin in 1565, provides an account of these last days of preaching.
… his gout began to abate somewhat, and then he forced himself to go out sometimes to be entertained among his friends, but chiefly to lecture and even to preach, having himself carried to church in a chair … he continued to do all he could of his public office, always dragging his poor body along, until the beginning of February 1564 … on the Sunday, February 6, [he gave] his last sermon on the Harmony of the Three Gospels. Thereafter he never went up into the pulpit.
John D. Currid, Calvin and the Biblical Languages (Fearn, Ross-shire, UK: Christian Focus Publications, 2006), 28.