Joel 2:12-17

12Therefore also now, saith Yhwh, turn ye even to me with all your heart, and with fasting, and with weeping, and with mourning: 13And rend your heart, and not your garments, and turn unto Yhwh your God: for he is gracious and merciful, slow to anger, and of great kindness, and repenteth him of the evil. 14Who knoweth if he will return and repent, and leave a blessing behind him; even a grain offering and a drink offering unto Yhwh your God?

15Blow the trumpet in Zion, sanctify a fast, call a solemn assembly: 16Gather the people, sanctify the congregation, assemble the elders, gather the children, and those that suck the breasts: let the bridegroom go forth of his chamber, and the bride out of her closet. 17Let the priests, the ministers of Yhwh, weep between the porch and the altar, and let them say, Spare thy people, O Yhwh, and give not thine heritage to reproach, that the heathen should rule over them: wherefore should they say among the people, Where is their God?1