This chapter is a further prophecy of the destruction of the Jews, with the causes of it, their sins, as their idolatry, which was notorious; of which their own consciences, their altars, and their children, were witnesses, Jer 17:1 for which they are threatened with the spoil of their substance and treasure, and discontinuance in their land, Jer 17:3 as also their confidence in an arm of flesh, which brought the curse of God upon them, when such are blessed that trust in him; and the difference between those that trust in men and those that trust in the Lord is illustrated by very apt similes, Jer 17:5, the source of which vain confidence is the wicked heart of man, known to none but God, Jer 17:9 and the vanity of it is exposed by a partridge sitting on eggs without hatching them, Jer 17:11, and their departure from God, by trusting in the creature, and in outward things, is aggravated by their temple being the throne and seat of the divine Majesty; by what God is to his people that trust in him; and by the shame and ruin that follow an apostasy from him, Jer 17:12, wherefore the prophet, sensible of his own backslidings, prays to be healed and saved by the Lord, who should have all the praise and glory, Jer 17:14 and then relates the scoffs of the people at the word of God by him, another cause of their ruin; declares his own innocence and integrity; prays for protection and security from fear in a time of trouble; and for confusion, terror, and destruction to his persecutors, Jer 17:15, then follows an order to him from the Lord, to go and stand in the gate of the city, and exhort all ranks of men to the observation of the sabbath, with directions how to keep it, which had not been observed by their fathers, and which was another cause of their ruin, Jer 17:19, and the chapter is closed with promises of blessings in city, court, and country, in church and state, should they religiously observe the sabbath day; but if they profaned it, the city of Jerusalem, and its palaces, should be burnt with fire, Jer 17:24.
Ver. 1. The sin of Judah is written with a pen of iron,.... Or an iron tool, such as engravers use in working on hard matter:[and] with the point of a diamond; such as glaziers use in cutting their glass; though this is not the word used for a diamond in Ex 28:18, this word is elsewhere translated an adamant, Eze 3:9.
Bothart takes it to be the smiris, which jewellers use in polishing their gems. Jarchi makes mention of a Midrash, or exposition, which explains the iron pen of Jeremiah, and the point of the adamant, or diamond, of Ezekiel, because of what is said of them, Jer 1:18.
Kimchi thinks the word "shamir", rendered "diamond", is expressive of the subject matter on which their sin is said to be written, and not of the instrument with which; and then it is to be read thus,"the sin of Judah is written with an iron pen (with an iron claw, or nail, of which mention is made in some Jewish writings) upon "shamir", or an adamant stone;''which is no other than their stony heart, as it follows:it is graven upon the table of their heart; where it is so fixed that it cannot be rooted out, and will never be forgotten by them, but always remembered and desired; for which they have the strongest affections, having a place, and having made deep impressions there: or this may denote the evidence of it in their own consciences, which bore witness to it, and which they could not deny:and upon the horns of your altars; on which the names of their idols were engraven or inscribed, Ac 17:23, so that their idolatry was notorious; their consciences within, and their altars without, were testimonies of it and besides, the blood of the sacrifices was poured upon the horns of the altar, Le 4:7 and which, as it was done at the offering of sacrifices appointed of God, so very probably at the offering of sacrifices to idols, and which made their sin notorious; yea, even all the sacrifices of the ceremonial law were a standing testimony of their being sinners, and carried in them a confession of sin, and that they were deserving of death, and so were a handwriting against them; for there is no need to limit the sin of Judah here to idolatry, but it may include all their sins; and so the Targum expresses it in the plural number,"the sins of Judah;''though, if any particular sin is intended, it seems to be idolatry, by what follows.
Hierozoic. par. 2. l. 6. c. 11, col. 842.