symbolism seems to be that the sufferings of the saints gave efficacy to their prayers, and drew down the answer of Him who says, "Call upon Me in the day of trouble, and I will answer thee, and thou shalt glorify Me."[201] (4) The words of ver. 3, _the prayers of all the saints_, and the similar expression in ver. 4, remind us of the prayers of the fifth Seal, now swelled by the prayers of those New Testament saints who have been added to "the blessed fellowship" of the Old Testament martyrs. These prayers, it will be remembered, rose from beneath the altar of burnt-offering; and it is natural to think that the same altar is again alluded to in order to bring out the idea of a similar martyrdom. What we see, therefore, is an angel taking the prayers and adding to them much incense, so that we may behold them as they ascend up before God and receive His answer. Further, it ought to be observed that the prayers referred to are for judgment upon sin. There is nothing to justify the supposition that they are partly for judgment upon, partly for mercy to, a sinful world. They are simply another form of the cry, "How long, O Master, the holy and true, dost Thou not judge and avenge our blood on them that dwell on the earth?"[202] They are a cry that God will vindicate the cause of righteousness.[203] The cry is heard, for the angel takes of the fire of the altar on which the saints had been sacrificed as an offering to God, and casts it into the earth, that it may consume the sin by which it had been kindled. The _lex talionis_ again starts to view; not merely punishment, but retribution, the heaviest of all retribution, because it is accompanied by a convicted conscience, retribution in kind. Everything is now ready for judgment, and _the seven angels which had the seven trumpets prepare themselves to sound_:-- And the first sounded, and there followed hail and fire mingled with blood, and they were cast into the earth: and the third part of the earth was burnt up, and the third part of the trees was burnt up, and all green grass was burnt up (viii. 7).