New Revised Standard Version
When Judah turned, the battle was in front of them and behind them. They cried out to the LORD, and the priests blew the trumpets.

Contemporary English Version
Judah's army realized they were trapped, and so they prayed to the LORD. The priests blew the signal on the trumpet,

New American Bible
When Judah turned and saw that they had to battle on both fronts, they cried out to the LORD and the priests sounded the trumpets.

Douay-Rheims Bible
And when Juda looked back, they saw the battle coming upon them both before and behind, and they cried to the Lord: and the priests began to sound with the trumpets.

And when Juda looked back, they saw the battle coming upon them both before and behind, and they cried to the Lord: and the priests began to sound with the trumpets.

looked back

Exodus 14:10 And when Pharao drew near, the children of Israel lifting up their eyes, saw the Egyptians behind them: and they feared exceedingly, and cried to the Lord.

Joshua 8:20 And the men of the city, that pursued after Joshua, looking back, and seeing the smoke of the city rise up to heaven, had no more power to flee this way or that way: especially as they that had counterfeited flight, and were going toward the wilderness, turned back most valiantly against them that pursued.

Judges 20:33-43 Then all the children of Israel rising up out of the places where they were, set their army in battle array, in the place which is called Baalthamar. The ambushes also, which were about the city, began by little and little to come forth, . . .

2 Samuel 10:8-14 And the children of Ammon came out, and set their men in array at the entering in of the gate: but the Syrians of Soba, and of Rohob, and of Istob, and of Maacha were by themselves in the field. . . .

cried

2 Chronicles 14:11 And he called upon the Lord God, and said: Lord, there is no difference with thee, whether thou help with few, or with many: help us, O Lord our God: for with confidence in thee, and in thy name we are come against this multitude. O Lord thou art our God, let not man prevail against thee.

2 Chronicles 18:31 So when the captains of the cavalry saw Josaphat, they said: This is the king of Israel. And they surrounded him to attack him: but he cried to the Lord, and he helped him, and turned them away from him.

Psalm 50:15 And call upon me in the day of trouble: I will deliver thee, and thou shalt glorify me.

Psalm 91:5 His truth shall compass thee with a shield: thou shalt not be afraid of the terror of the night.

the priests

2 Chronicles 13:12 Therefore God is the leader in our army, and his priests who sound with trumpets, and resound against you: O children of Israel, fight not against the Lord the God of your fathers, for it is not good for you.