The LORD utters his voice
before his army,
for his camp is exceedingly great;
he who executes his word is powerful.
For the day of the LORD is great and very awesome;
who can endure it?
 “Yet even now,” declares the LORD,
“return to me with all your heart,
with fasting, with weeping, and with mourning;
 and rend your hearts and not your garments.”
Return to the LORD your God,
for he is gracious and merciful,
slow to anger, and abounding in steadfast love;
and he relents over disaster.
 Who knows whether he will not turn and relent,
and leave a blessing behind him,
a grain offering and a drink offering
for the LORD your God? (ESV)