Psalm 48:4-5

When the kings joined forces, when they advanced together, they saw her and were astounded; they fled in terror.

When the kings joined forces, when they advanced together 
2 Samuel 10:6  When the Ammonites realized that they had become obnoxious to David (see verses 10:1-5), they hired twenty thousand Aramean foot soldiers from Beth Rehob and Zobah, as well as the king of Maacah with a thousand men from Tob.
2 Samuel 10:15-16  After the Arameans saw that they had been routed by Israel, they regrouped. Hadadezer had Arameans brought from beyond the Euphrates River; they went to Helam, with Shobak the commander of Hadadezer's army leading them. (see verses 6-19)

they saw her and were astounded, they fled in terror 
Exodus 15:16  "... terror and dread will fall on them. By the power of your arm they will be as still as stone--until your people pass by, LORD, until the people you bought pass by."
2 Samuel 10:19  When all the kings who were vassals of Hadadezer saw that they had been routed by Israel. they made peace with the Israelites and became subject to them.
Isaiah 13:8  Terror will seize them, pain and anguish will grip them; they will writhe like a woman in labor. They will look aghast at each other, their faces aflame.
Jeremiah 46:5  "What do I see? They are terrified, they are retreating, their warriors are defeated. They flee in haste without looking back, and there is terror on every side," declared the LORD.
Daniel 5:5-6  Suddenly the fingers of a human hand appeared and wrote on the plaster of the wall, near the lampstand in the royal palace. The king watched the hand as it wrote. His face turned pale and he was so frightened that his legs became weak and his knees were knocking.
Daniel 5:8-9  Then all the king's wise men came in, but they could not read the writing or tell the king what it meant. So King Belshazzar became even more terrified and his face grew more pale. His nobles were baffled.

(parentheses are mine)

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. 
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