2 Chronicles 20:3

Then Jehoshaphat, being terrified with fear, gave himself entirely to petitioning the Lord, and he proclaimed a fast for all of Judah

Other versions

King James Version

And Jehoshaphat feared, and set himself to seek the LORD, and proclaimed a fast throughout all Judah.

English Standard Version

Then Jehoshaphat was afraid and set his face to seek the LORD, and proclaimed a fast throughout all Judah.

New International Version

Alarmed, Jehoshaphat resolved to inquire of the LORD, and he proclaimed a fast for all Judah.