John Trapp on John 21:20

Verſe 20. Then Peter turning about.] Peter, though reſtored and reſetled in his Apoſtleſhip, is not without his infirmities. Quiſ que aliquid ſatuitatis habet adjunctum. Melanct. They that are cured of a phrenſie, are not without their mad tricks ſometimes. No pomgranate ſo ſound, but hath one rotten kernell in it. No book ſo well printed, but hath ſome errata's. David ſaw ſo many in himſelf, Pſal. 19. that he cries out, Who can underſtand the errours of his life, oh purge me, &c. They that dream of perfection here, ſuffer a merry madneſſe.