Psalm 79:8-9, 11, 13
In fairy tales, not the Disney versions but the originals, a common trope is that the king will ask the wicked person for advice on how to punish a wicked person. The wicked person misunderstands who the punishment is for and advises a particularly horrific punishment. Then the king tells the wicked person that they will be punished exactly as they said. There is some poetic justice in how the person is forced to suffer their own sentence. I often wondered why they never realize in time that they have been caught and suggest some very light punishment.
Jesus warns us that we are going to suffer this poetic justice. Hopefully, we hear his words in time to save ourselves. If our King asks me how a sinner should be treated, I am going to say that he should be forgiven if he is even a little bit sorry and then welcomed into heaven. These cannot be mere words: I need to start treating sinners that way since that is how I want to be treated. Jesus tells us that the measure with which we measure will be measured out to us. In other words, we should do unto others as we would have them do unto us, because that is in fact how it will be done unto us.
When we do something wrong, we are usually quick to talk about mitigating circumstances. It is truly a saint who takes absolute responsibility for their own sins. Even if we accept responsibility for our sin, we who fall far short of righteousness quickly begin to explain why it was not really so bad after all, until we are confessing merely that we misheard or misunderstood or were misunderstood: “I am very sorry that you were offended by what I said.” How rare is the person who can say “I’m sorry” without adding soon after “Although, it was not really as bad as you make out.”
So it is that we are very good about making up excuses for ourselves. We should stop that. But, at the very least, we should start using this marvelous talent with other people. Not pretending that bad is good, but making every excuse for the person who has sinned against us. When someone cuts you off in traffic, presume that they are on their way to the hospital. When someone snaps at you, presume they have a very bad headache. When we measure out punishment, what seems like a tiny dose given to another will look enormous when it is directed back at ourselves.