The first point is concerned with the reversal of fortune in the after-life (vv. 19-26), the second (vv. 27-31) with the petition of the rich man that Abraham may send Lazarus to his five brethren. . . [Jesus places] the stress is on the second point. That means that Jesus does not want to comment on a social problem, nor does he intend to give teaching about the after-life, but he relates the parable to warn men who resemble the brothers of the rich man of the impending danger. Hence the poor Lazarus is only a secondary figure, introduced by way of contrast. The parable is about the five brothers, and it should not be styled the parable of the Rich Man and Lazarus, but the parable of the Six Brothers.
The surviving brothers, who have their counterpart in the men of the Flood generation [Jeremias' reference to Noah's generation], living a careless life, heedless of the rumble of the approaching flood (Matt. 24:37-39), are men of this world, like their dead brother. Like him they live in selfish luxury, deaf to God's word, in the belief that death ends all (v. 28). Scornfully, Jesus was asked by these skeptical worldlings for a valid proof of a life after death, if they were to be paying heed to his warning. Jesus wanted to open their eyes, but to grant their demand would not be the right way to do so. Why did Jesus refuse it? Because its fulfillment would have been meaningless; even the greatest wonder, resurrection, would be in vain [in John 11:46 ff. the raising of Lazarus served to complete the hardening of the Jews]. He who will not submit to the word of God, will not be converted by a miracle. The demand for a sign is an evasion and a sign of impenitence. Hence the sentence is pronounced: "God will never give a sign to this generation" (Mark 8.12).