Lukas 21:18

not a hair . . . perish--He had just said (Luk 21:16) they should be put to death; showing that this precious promise is far above immunity from mere bodily harm, and furnishing a key to the right interpretation of the ninety-first Psalm, and such like. Matthew adds the following (Mat 24:12): "And because iniquity shall abound, the love of many," the many or, the most--the generality of professed disciples--"shall wax cold." But he that endureth to the end shall be saved. Sad illustrations of the effect of abounding iniquity in cooling the love of faithful disciples we have in the Epistle of James, written about this period referred to, and too frequently ever since (Heb 10:38-39; Rev 2:10). "And this gospel of the kingdom shall be preached in all the world for a witness, and then shall the end come" (Mat 24:14). God never sends judgment without previous warning; and there can be no doubt that the Jews, already dispersed over most known countries, had nearly all heard the Gospel "as a witness," before the end of the Jewish state. The same principle was repeated and will repeat itself to the end.

In this chapter we have, I. The notice Christ took, and the approbation he gave, of a poor widow that cast two mites into the treasury (Luk 21:1-4). II. A prediction of future events, in answer to his disciples' enquiries concerning them (Luk 21:5-7). 1. Of what should happen between that and the destruction of Jerusalem - false Christs arising, bloody wars and persecutions of Christ's followers (Luk 21:8-19). 2. Of that destruction itself (Luk 21:20-24). 3. Of the second coming of Jesus Christ to judge the world, under the type and figure of that (Luk 21:25-33). III. A practical application of this, by way of caution and counsel (Luk 21:34-36), and an account of Christ's preaching and the people's attendance on it (Luk 21:37, Luk 21:38).

21:18-19 But not a hair of your head will perish! This idiom signifies full protection (1 Sam 14:45; 2 Sam 14:11; 1 Kgs 1:52; Dan 3:27). It refers here to the disciples’ souls, because some would be martyred for their faith (Luke 21:16).