Commentaries
8:9-17 Those only who lay their hands to the plough of duty, shall have them strengthened with the promises of mercy: those who avoid their fathers' faults have the curse turned into a blessing. Those who believed the promises, were to show their faith by their works, and to wait the fulfilment. When God is displeased, he can cause trade to decay, and set every man against his neighbour; but when he returns in mercy, all is happy and prosperous. Surely believers in Christ must not trifle with the exhortation to put away lying, and to speak every man peace with his neighbour, to hate what the Lord hates, and to love that wherein he delights.
16, 17. The promised blessings are connected with obedience. God's covenanted grace will lead those truly blessed by it to holiness, not licentiousness.
truth to … neighbour—not that the truth should not be spoken to foreigners too; but He makes it an aggravation of their sin, that they spared not even their brethren. Besides, and above all outward ordinances (Zec 7:3), God requires truth and justice.
judgment of … peace—Equitable decisions tend to allay feuds and produce peace.
gates—the place where courts of judicature in the East were held.