“Do you think that David is honoring your father by sending comforters to you? Is it not to make a thorough search and to overthrow you and to spy out the land that his servants have come to you?”
~1 Chronicles 19:3

When Hanash, the king of the Ammonites died, King David sought to comfort Hanash’s son.
However, Hanash’s son, King Hanun, received bad advice from his companions and questioned David’s motives.
This suspicion led him to disgrace David’s messengers (1 Chron. 19:4).
Fed by fear of retaliation, the Ammonites eventually waged war on Israel with the help of Syrian soldiers, 47,000 of whom died at the hands of David’s forces (1 Chron. 19:6-10, 18).
All this damage could have easily been avoided if King Hanun had been less skeptical and more grateful toward David.
This passage highlights the importance of not being hyper-critical.
It is not wise to jump to conclusions and assume that anyone reaching out a hand to me really means to harm me.
If I am always defensive and doubting others, I could bring great harm to myself and the congregation.