This chapter begins with setting forth the very strong bias which the people of Judah had to idolatry, with the fatal consequences, Jer 17:1-4. The happiness of the man that trusted in Jehovah is then beautifully contrasted with the opposite character, Jer 17:5-8. God alone knows the deceitfulness and wretchedness of the heart of man, Jer 17:9, Jer 17:10. The comparison of a bird's hatching the eggs of another of a different species, which will soon forsake her, is highly expressive of the vanity of ill-acquired riches, which often disappoint the owner, Jer 17:11. The prophet continues the same subject in his own person, appeals to God for his sincerity, and prays that the evil intended him by his enemies may revert on their own heads, Jer 17:12-18. The remaining part of the chapter is a distinct prophecy relating to the due observance of the Sabbath, enforced both by promises and threatenings, Jer 17:19-27.