"...O LORD, the God of our fathers, are You not God in the heavens? And are You not ruler over all the kingdoms of the nations? Power and might are in Your hand so that no one can stand against You...'should evil come upon us, the sword or judgement, or pestilence, or famine, we will stand before this house and before You (for Your name is in this house) and cry to You in our distress, and You will hear and deliver us.'...O our God, will You not judge them? For we are powerless before this great multitude sho are coming against us; nor do we know what to do, but our eyes are on You."
"Thus says the LORD to you, 'Do not fear or be dismayed because of this great multitude, for the battle is not yours but God's...You need not fight in this battle; station yourselves, stand and see the salvation of the LORD on your behalf O Judah and Jerusalem. Do not fear or be dismayed; tomorrow go out to face them, for the LORD is with you."
2 Chronicles 20:6,9,12,15, 17
"Act resolutely, and the LORD be with the upright." 2 Chronicles 19:11c
This is History, His story, His creation, and His plan. So look to Him, stand in your station, do your duty, and wait on the LORD. This battle is God's, you His servants, continue in the Way, and He will show you what to do.