All this is deeply practical, and most solemn. It finds its illustration in Peter as well as in Abraham. But now mark the exquisitely delicate way in which our blessed Lord proceeds to reach the roots in the heart of His dear and honored servant. "So when they had dined." Not till then. There was no allusion to the past, nothing that might cause a chill to the heart, or bring a cloud over the spirit, while a restored conscience was feasting in company with a love that knows no change. This is a fine moral trait. It characterizes the dealings of God with all His saints. The conscience is set at rest in the presence of infinite and everlasting love. But there must be the deeper work of reaching the root of things in the heart. When Simon Peter, in the full confidence of a restored conscience, flung himself at the feet of His risen Lord, he was called to listen to that gracious invitation, "Come and dine." But "when they had dined," Jesus, as it were, takes Peter apart, in order to let in upon his soul the light of truth, so that by it he might discern the root from whence all his failure had sprung. That root was self-confidence, which had led him to place himself in advance of his fellow-disciples, and say, "Though all should deny Thee, yet will not I." This root had to be exposed, and therefore, "When they had dined, Jesus saith to Simon Peter, Simon, son of Jonas, lovest thou Me more than these?" This was a pointed and pungent question, and it went right to the very bottom of Peter's heart. Three times Peter had denied his Lord, and three times his Lord now challenges the heart of Peter--_for the roots must be reached if any permanent good is to be done_. It will not do merely to have the conscience purged from the effects which have been produced in practical life; there must also be the moral judgment of that which produced them. This is not sufficiently understood and attended to, and hence it is that again and again the roots spring up and bear forth their fruit with increasing power, thus cutting out for us the most bitter and sorrowful work, which might all be avoided if the roots of things were thoroughly judged and kept under judgment.