3:9 For {g} then will I turn to the people a pure language, that they may all call upon the name of the LORD, to serve him with one consent.
(g) Lest any should then think that God's glory should have perished when Judah was destroyed, he shows that he will proclaim his grace through all the world.
3:9 A pure language - I will give them a pure way of worshipping me, the issue of a pure heart.
3:8-13 The preaching of the gospel is predicted, when vengeance would be executed on the Jewish nation. The purifying doctrines of the gospel, or the pure language of the grace of the Lord, would teach men to use the language of humility, repentance, and faith. Purity and piety in common conversation is good. The pure and happy state of the church in the latter days seems intended. The Lord will shut out boasting, and leave men nothing to glory in, save the Lord Jesus, as made of God to them wisdom, righteousness, sanctification, and redemption. Humiliation for sin, and obligations to the Redeemer, will make true believers upright and sincere, whatever may be the case among mere professors.
