Jeremiah
Jeremiah 35:18BSB·traditional attribution

Then Jeremiah said to the house of the Rechabites: “This is what the LORD of Hosts, the God of Israel, says: ‘Because you have obeyed the command of your forefather Jonadab and have kept all his commandments and have done all that he charged you to do,

John Calvin Reformed @genevareformer

Here the Prophet, that he might affect the Jews more deeply, promises a reward to the sons of Jonadab, because they obeyed their father; and he promises them a blessing from God. Nor is it to be wondered at, for this commandment, as Paul says, is the first to which a promise is annexed.

Matthew Henry Presbyterian @wholebiblehenry

The trial of the Rechabites' constancy was intended but for a sign; now here we have the application of it. I. The Rechabites' observance of their father's charge to them is made use of as an aggravation of the disobedience of the Jews to God. Let them see it and be ashamed. The prophet asks them, in God's name, "Will you not at length receive instruction? Jer 35:13.

Commenting on Jeremiah 35:12-19

John Gill Reformed Baptist @doctorgill

And Jeremiah said unto the house of the Rechabites,.... To the family of them, to those that were with him in the temple, and while they were there; and what he said to them, which is as follows, was by the order and direction of the Lord: thus saith the Lord of hosts, the God of Israel; he uses the same titles, when speaking to...