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? v. 13. Will nothing affect you? Will nothing fasten upon you? Will nothing prevail to discover sin and duty to you? You see how obedient the Rechabites are to their father's commandment (v. 14); but you have not inclined your ear to me" (v. 15), though one might much more reasonably expect that the people of God should have obeyed him than that the sons of Jonadab should have obeyed him; and the aggravation is very high, for, 1. The Rechabites were obedient to one who was but a man like themselves, who had but the wisdom and power of a man, and was only the father of their flesh; but the Jews were disobedient to an infinite and eternal God, who had an absolute authority over them, as the Father of their spirits. 2. Jonadab was long since dead, and was ignorant of them, and could neither take cognizance of their disobedience to his orders nor give correction for it; but God lives for ever, to see how his laws are observed, and is in a readiness to revenge all disobedience. 3. The Rechabites were never put in mind of their obligations to their father; but God often sent his prophets to his people, to put them in mind of their duty to him, and yet they would not do it. This is insisted on here as a great aggravation of their disobedience: "I have myself spoken to you, rising early and speaking by the written word and the dictates and admonitions of conscience (v. 14); nay, I have sent unto you all my servants the prophets, men like yourselves, whose terrors shall not make you afraid, rising up early and sending them (v. 15), and yet all in vain." 4. Jonadab never did that for his seed which God had done for his people. He left them a charge, but left them no estate to bear the charge; but God had given his people a good land, and promised them that, if they would be obedient, they should still dwell in it, so that they were bound both in gratitude and interest to be obedient, and yet they would not hear, they would not hearken. 5. God did not tie up his people to so much hardship, and to such instances of mortification, as Jonadab obliged his seed to; and yet Jonadab's orders were obeyed and God's were not.