Because ye speak this word - Because ye thus treat my message, "I will make my words in thy mouth fire." They have said they are but air; but I will make them fire, and a fire too that shall devour them. And how this was to be done, and by whom, is mentioned in the next verse.

Wherefore thus saith the Lord God of hosts, because ye speak this word,.... That it is not the Lord; it is not he that speaks; it is no prophecy of him, and therefore shall become wind, and come to nothing:

behold, I will make my word in thy mouth fire: it shall have its effect, and a dreadful one; it shall not become wind, but be as fire, not to enlighten the understanding, to purify the conscience, and warm the heart; but to torture, distress, and destroy, as the fire of the word out of the mouths of the two witnesses, Revelation 11:5,

and this people wood, and it shall devour them; as wood is devoured by fire, so shall this people be destroyed by sword and famine, as the word of the prophecy has declared they should; and which was done by the following means.

But the people is to have proof of the truth of the word of the Lord. Because it, despising the threatening of punishment, says: Misfortune shall not light upon us, the Lord will make the word in the mouth of Jeremiah a fire, and the people wood, that the fire may consume it. On this figure, cf. Isaiah 1:31; Isaiah 10:17. Jeremiah 5:15. explain this, and announce the inroad of a dreadful enemy that is to lay waste the land and consume the people. "A people from far," as in Jeremiah 4:16. Judah is called "house of Israel," not so much because it is what remains of Israel, but because, after the captivity of the ten tribes, Judah regarded itself as the only true Israel or people of God. Further description of the hostile people is intended to show its formidable power, and to inspire dread. איתן, enduring, firm, strong; cf. Genesis 49:24; Micah 6:2. מעולם, dating from eternity, i.e., very ancient, not of recent origin, but become mighty in immemorial antiquity. A people speaking a language unfamiliar to the Jews, to comprehend whom is impossible, i.e., barbarous; cf. Deuteronomy 28:49. Further (Jeremiah 5:16), it is a race of very heroes, fully furnished with deadly weapons. J. D. Mich. took objection to the figure, "its quiver is as an open grave;" but his conjecture שׂפתו put nothing better in place of it. The link of comparison is this: as an open grave is filled with dead men, so the quiver of this enemy is filled with deadly missiles.

Wherefore thus saith the LORD God of hosts, Because ye speak this word, behold, I will make my words in {n} thy mouth fire, and this people wood, and it shall devour them.

(n) Meaning, Jeremiah.

5:14 It - The Chaldean army, shall consume and eat them up like fire.

14. ye . thy . this people-He turns away from addressing the people to the prophet; implying that He puts them to a distance from Him, and only communicates with them through His prophet (Jer 5:19).

fire . wood-Thy denunciations of judgments shall be fulfilled and shall consume them as fire does wood. In Jer 23:29 it is the penetrating energy of fire which is the point of comparison.

5:10-18 Multitudes are ruined by believing that God will not be so strict as his word says he will; by this artifice Satan undid mankind. Sinners are not willing to own any thing to be God's word, that tends to part them from, or to disquiet them in, their sins. Mocking and misusing the Lord's messengers, filled the measure of their iniquity. God can bring trouble upon us from places and causes very remote. He has mercy in store for his people, therefore will set bounds to this desolating judgment. Let us not overlook the nevertheless, ver. 18. This is the Lord's covenant with Israel. He thereby proclaims his holiness, and his utter displeasure against sin while sparing the sinner, Ps 89:30-35.