Joel 2:12-16 KJV

12 Therefore also now, saith the LORD, turn ye even to me with all your heart, and with fasting, and with weeping, and with mourning:
13 And rend your heart, and not your garments, and turn unto the LORD your God: for he is gracious and merciful, slow to anger, and of great kindness, and repenteth him of the evil.
14 Who knoweth if he will return and repent , and leave a blessing behind him; even a meat offering and a drink offering unto the LORD your God?
15 Blow the trumpet in Zion, sanctify a fast, call a solemn assembly:
16 Gather 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.