But I will forewarn you whom ye shall fear: Fear him, which after he hath killed hath power to cast into hell; literally, into Gehenna. This is simply Gee-hinnom, "valley of Hinnom," translated into Greek letters· This valley was situated in the neighborhood of Jerusalem, and originally was noted for the infamous rites practiced there in the worship of Moloch, in the times of the idolatrous kings of Judah. King Josiah, to mark his abhorrence of the idol-rites, defiled it with corpses; fires were subsequently kindled to consume the putrefying matter and prevent pestilence. The once fair valley, thus successively defiled with hideous corrupting rites, by putrefying corpses, and then with blazing fires lit to consume what would otherwise have occasioned pestilence, was taken by rabbinical writers as a symbol for the place of torment, and is used not unfrequently as a synonym for "hell." The translators of the Authorized Version have done so here. The reminder is, after all, we need not fear men. When they have done their worst, they have only injured or tortured the perishable body. The One whom all have good reason to fear is God, whose power is not limited to this life, but extends through and beyond death. Some have strangely supposed, not God, but the devil, is intended here to be the real object of human fear. The devil can be no object of fear to the Master's disciples.
Are not five sparrows sold for two farthings, and not one of them is forgotten before God? But even the very hairs of your head are all numbered. Fear not therefore: ye are of more value than many sparrows. Though persecution and bitter suffering, even death, may be the guerdon of the Lord's true servants here, none of these things can happen without the consent of God. This thought will surely give them courage to endure. Suffering undergone in God's service, inflicted, too, with his entire consent, so that the suffering becomes part of the service,—what an onlook is afforded to the brave, faithful servant by such a contemplation! Oh the welcome from God he is sure to meet with when such a death has been endured! These extreme instances of God's universal care—his all-knowledge of everything, however little and insignificant, belonging to his creatures—are chosen to give point to the Master's words. If he knows of the death of these little, almost valueless, birds—ay, even of the falling of one of the many hairs of your head—surely you cannot doubt his knowledge of, his caring for, the life or death of one of his proved and gallant followers. These little sparrows were sold in the markets, strung together, or on skewers.