It is not nice to know when we have been tricked or cheated.
We feel angry about those who did that to us especially when we did not do anything wrong to them.
Instinctively, we would want to confront them about it.
And if we can't do that, then we may even think of getting back at them in the same way that they tricked or cheated us.
In the 1st reading, the prophet Jeremiah realised that there were people who were plotting against him when the Lord revealed it to him.
He prayed to the Lord to pronounce a just sentence, the Lord who probes the loins and the heart, that he will see the vengeance the Lord will take on them, for he has committed himself to the Lord.
Jeremiah wasn't able to defend himself against the plotting of his enemies.
However he let the Lord do whatever He wills.
Let us always remember that if we want the Lord to protect us, then we must not resort to retaliation.
Let us trust in the Lord that He will defend us from evil and will vindicate us.