2 Samuel 10:1-19
In the course of time, the king of the Ammonites died, and his son Hanun succeeded him as king. David thought, “I will show kindness to Hanun son of Nahash, just as his father showed kindness to me.” So David sent a delegation to express his sympathy to Hanun concerning his father.
When David’s men came to the land of the Ammonites, the Ammonite commanders said to Hanun their lord, “Do you think David is honoring your father by sending envoys to you to express sympathy? Hasn’t David sent them to you only to explore the city and spy it out and overthrow it?” So Hanun seized David’s envoys, shaved off half of each man’s beard, cut off their garments at the buttocks, and sent them away.
Be strong, and let us fight bravely for our people and the cities of our God. The Lord will do what is good in his sight.
Then Joab and the troops with him advanced to fight the Arameans, and they fled before him. When the Ammonites realized that the Arameans were fleeing, they fled before Abishai and went inside the city. So Joab returned from fighting the Ammonites and came to Jerusalem
When David was told of this, he gathered all Israel, crossed the Jordan and went to Helam. The Arameans formed their battle lines to meet David and fought against him. But they fled before Israel, and David killed seven hundred of their charioteers and forty thousand of their foot soldiers. He also struck down Shobak the commander of their army, and he died there. 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.
So the Arameans were afraid to help the Ammonites anymore.
Why?
Original David showed kindness to the Ammonites but their king misunderstood the purpose of David. Then a war was started between Israel Ammonites and Arameans.
This war is induced by misunderstandings or a lack of trust in each other.
Be strong and do what we should to fight bravely, The Lord will do what is good in his sight.
How?
We should make clear everything we meet and make an effort. The Lord will do what is good in his sight.