Though the apostles were conscious to themselves of great weakness, and expected no wordly advantage, yet, in obedience to their Master, and in dependence upon his strength, they went out. They did not amuse people with curious matters, but told them they must repent of their sins, and turn to God. The servants of Christ may hope to turn many from darkness unto God, and to heal souls by the power of the Holy Ghost.
6 From the sole of the foot even unto the head there is no soundness in it; but wounds, and bruises, and putrifying sores: they have not been closed, neither bound up, neither mollified with ointment. ointment: or, oil
English Standard Version
6 From the sole of the foot even to the head, there is no soundness in it, but bruises and sores and raw wounds; they are not pressed out or bound up or softened with oil.
6 From the bottom of your feet to the top of your head, nothing's working right. Wounds and bruises and running sores - untended, unwashed, unbandaged.
New King James Version
6 From the sole of the foot even to the head, There is no soundness in it, But wounds and bruises and putrefying sores; They have not been closed or bound up, Or soothed with ointment.
New Living Translation
6 You are battered from head to foot- covered with bruises, welts, and infected wounds- without any soothing ointments or bandages.
Isaiah signifies, "The salvation of the Lord;" a very suitable name for this prophet, who prophesies so much of Jesus the Saviour, and his salvation. God's professing people did not know or consider that they owed their lives and comforts to God's fatherly care and kindness. How many are very careless in the affairs of their souls! Not considering what we do know in religion, does us as much harm, as ignorance of what we should know. The wickedness was universal. Here is a comparison taken from a sick and diseased body. The distemper threatens to be mortal. From the sole of the foot even to the head; from the meanest peasant to the greatest peer, there is no soundness, no good principle, no religion, for that is the health of the soul. Nothing but guilt and corruption; the sad effects of Adam's fall. This passage declares the total depravity of human nature. While sin remains unrepented, nothing is done toward healing these wounds, and preventing fatal effects. Jerusalem was exposed and unprotected, like the huts or sheds built up to guard ripening fruits. These are still to be seen in the East, where fruits form a large part of the summer food of the people. But the Lord had a small remnant of pious servants at Jerusalem. It is of the Lord's mercies that we are not consumed. The evil nature is in every one of us; only Jesus and his sanctifying Spirit can restore us to spiritual health.
If we speak of eternal life, and the way to it, in a careless manner, we take the name of God in vain. No one will ever love God and his neighbour with any measure of pure, spiritual love, who is not made a partaker of converting grace. But the proud heart of man strives hard against these convictions. Christ gave an instance of a poor Jew in distress, relieved by a good Samaritan. This poor man fell among thieves, who left him about to die of his wounds. He was slighted by those who should have been his friends, and was cared for by a stranger, a Samaritan, of the nation which the Jews most despised and detested, and would have no dealings with. It is lamentable to observe how selfishness governs all ranks; how many excuses men will make to avoid trouble or expense in relieving others. But the true Christian has the law of love written in his heart. The Spirit of Christ dwells in him; Christ's image is renewed in his soul. The parable is a beautiful explanation of the law of loving our neighbour as ourselves, without regard to nation, party, or any other distinction. It also sets forth the kindness and love of God our Saviour toward sinful, miserable men. We were like this poor, distressed traveller. Satan, our enemy, has robbed us, and wounded us: such is the mischief sin has done us. The blessed Jesus had compassion on us. The believer considers that Jesus loved him, and gave his life for him, when an enemy and a rebel; and having shown him mercy, he bids him go and do likewise. It is the duty of us all , in our places, and according to our ability, to succour, help, and relieve all that are in distress and necessity.