Upon the wicked - Upon all the wicked.
He shall rain - He shall pour down as in a furious tempest.
Snares - It seems rather incongruous to speak of raining down “snares, “ - understanding by the word snares, as it is used with us, that which entangles, as the snares by which we catch a bird, or by which a wild animal is taken. Compare the notes at Job 18:8-10. The word used here, however, seems to refer to anything by which one is taken in his career or course, or is involved in difficulties; and the meaning is, that God would arrest or seize upon the wicked, as a wild beast is secured by the snares or the toils of the hunter. By their being sent down as in a “rain,” is denoted that such means of their arrest and punishment would exist in abundance, so that they could not escape.
Fire and brimstone - There is probably an allusion here to the destruction of Sodom and Gomorrah, Genesis 19:24. As those cities were eminent for their wickedness, and were destroyed on account of their guilt, they furnished an illustration of the manner in which God would treat the wicked in all future times. As they were destroyed on account of their wickedness, so will all the wicked be destroyed.
And an horrible tempest - As a furious blast of wind sweeps away houses and trees, spreading wide desolation, so will the wicked be swept away by the manifestation of the wrath of God.
This shall be the portion of their cup - That is, this shall be what they shall drink. See the note at Isaiah 51:17. The idea is, that the Lord holds out to them a cup for them to drink - a cup containing a deadly mixture. The allusion is to the mode of administering punishment by a poisonous draught - not an unfrequent mode of punishment in ancient times. The idea in the whole verse is, that the wicked would be destroyed, and that, therefore, there was nothing ultimately to be apprehended from them. God would protect his own friends, and would destroy all those that sought their hurt. In these circumstances the righteous should confide in him as their protector, and not “flee.”