This parable, and that of the Good Samaritan, as has been justly suggested by Fred. Arndt, although historically separate, are logically related, like two branches that spring from one stem: together they express a Christian's duty to his brother in respect of injuries. When a brother inflicts an injury on you, forgive him; when a brother suffers an injury from another, help him. Forgiving love is taught in this parable; helpful love in the parable of the Good Samaritan. The immediate occasion of this parable is obviously Peter's question, "How oft shall my brother sin against me and I forgive him?" but how Peter's question springs from the preceding context does not so readily appear. The Natural History of the process in that apostle's mind was probably something of this sort: The Master had instructed his disciples how they should act in the event of a brother doing them an injury: three distinct steps are indicated, rising one above another like courts of appeal; first, a private remonstrance; if that prove unavailing, then a remonstrance in the presence of one or two witnesses; and lastly, an appeal to the Church. These rules are very specific, and together constitute a complete code on the branch of the subject to which they refer. In the matter of dealing with an offending brother with the view of bringing him to a better mind, you can no further go: if all these efforts fail, you must separate yourself from the offender, lest by continued intimacy you should seem indifferent to his sin. After this the Lord proceeds to give instruction on other subjects, and especially on united prayer. Peter, I suppose, had allowed his mind to be so completely occupied with the question of forgiving injuries, that he failed to follow his Teacher when the lesson glided into another theme. I could suppose him to have been so busy with the thought of injuries received, and the difficulty of forgiving them, all the time that the Lord was discoursing on united prayer, that he scarcely observed his Master's words. All the more readily might this happen, if the impetuous fisherman had a quarrel with some of his neighbours on hand at the very time, and was exercised in conscience about the duty of bringing it to a close. At the first pause, the current which had been for a time flowing under ground, burst out on the surface. Taking up and again abruptly introducing the subject which had been for some time dismissed, he asked, as if unconscious that the theme had been changed during his reverie, "Lord, how often shall my brother sin against me, and I forgive him? Till seven times?" He wanted to have a number specified, beyond which he should not be bound to forgive repeated offences. In suggesting seven he seems to have had in his mind some Pharisaical formula: probably he thought the allowance was liberal, and expected to be approved for his magnanimity.