Isaiah 62:6

I have set watchmen upon thy walls, O Jerusalem, the prophets and teachers who were to be on the lookout for the enemies, lest disaster overtake His flock, which shall never hold their peace day nor night, being engaged continually in promoting the glorification of Zion; ye that make mention of the Lord, the inhabitants of Zion, including the children of strangers who had joined them, keep not silence. All those who confess their faith in the Lord, teachers and hearers, should give themselves and the Lord no rest until their glorification is accomplished, as the text continues: