Passage
And Jehoshaphat feareth, and setteth his face to seek to Jehovah, and proclaimeth a fast over all Judah;
And Jehoshaphat feareth, and setteth his face to seek to Jehovah, and proclaimeth a fast over all Judah;
2 Chronicles 20:1 And it cometh to pass after this, the sons of Moab have come in, and the sons of Ammon, and with them of the peoples, against Jehoshaphat to battle.
2 Chronicles 20:2 And they come in and declare to Jehoshaphat, saying, `Come against thee hath a great multitude from beyond the sea, from Aram, and lo, they <FI>are<Fi> in Hazezon-Tamar--it <FI>is<Fi> En-Gedi.'
2 Chronicles 20:3 And Jehoshaphat feareth, and setteth his face to seek to Jehovah, and proclaimeth a fast over all Judah;
2 Chronicles 20:4 and Judah is gathered to inquire of Jehovah; also, from all the cities of Judah they have come in to seek Jehovah.
2 Chronicles 20:5 And Jehoshaphat standeth in the assembly of Judah and Jerusalem, in the house of Jehovah, at the front of the new court,
The verse centers on "jehoshaphat", "feareth", "setteth", "face", "seek", "jehovah", "proclaimeth", and "fast". It is saying that the verse draws attention to "jehoshaphat" and "feareth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 2's "And they come in and declare to..." into verse 4's "and Judah is gathered to inquire of...", so "jehoshaphat" and "feareth" belong inside that flow. In 2 Chronicles context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "jehoshaphat" and "feareth" with trust shaped by these words, not by a vague optimism outside the passage.