Joel 2:11

11 The Lord utters his voice at the head of his army; how vast is his host! Numberless are those who obey his command. Truly the day of the Lord is great; terrible indeed—who can endure it?

Joel 2:11 In-Context

9 They leap upon the city, they run upon the walls; they climb up into the houses, they enter through the windows like a thief.
10 The earth quakes before them, the heavens tremble. The sun and the moon are darkened, and the stars withdraw their shining.
11 The Lord utters his voice at the head of his army; how vast is his host! Numberless are those who obey his command. Truly the day of the Lord is great; terrible indeed—who can endure it?
12 Yet even now, says the Lord, return to me with all your heart, with fasting, with weeping, and with mourning;
13 rend your hearts and not your clothing. Return to the Lord, your God, for he is gracious and merciful, slow to anger, and abounding in steadfast love, and relents from punishing.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.