In the Lutheran tradition we are reminded that our sins are so many, that it would actually be impossible to try and recount all of them when we come and make Confession of them. Which is why we understand that our General Confession, "We have sinned against You in thought, word, and deed, by what we have done and what we have left undone" which we pray at every Divine Service is sufficient. And that specifying certain sins, such as before a private confessor, is not necessary, but can be beneficial for the sake of unburdening our guilt through the declaration of the forgiveness which is ours in Christ by His death and resurrection.
In that sense, it is impossible to really answer the question what our daily sins are; because chances are we are not even entirely aware of many or even most of our sins. They are myriad.
But each of us, almost certainly, can think of certain sins, certain things we did or failed to do; perhaps it was just that one particular lousy day, or perhaps it is something we regularly are struggling against.
Each person's particular struggle is different. But I imagine there are plenty of common struggles: pride, lust, anger, envy, intemperance. Someone cuts us off in traffic and we curse; we might still be holding a grudge against someone, or maybe a group of people, and when we think about that person or those people our heart becomes callous and hardened against them and we fail to forgive them yet again; and perhaps don't even acknowledge that we should be repenting of it. We might see and lust after another person and, perhaps even for just a moment (or perhaps we allow the thought to linger longer) we transform a living breathing person created in God's image to become a mere object of our sexual appetites in our mind--and also if we are married or in committed relationships therefore betray our spouse or significant other in our thoughts and desires. We might be late to getting our lunch that day, and become irritated and impatient with the people making our food that they are taking too long, or perhaps we are irritated that there are so many people there in front of us; prioritizing our wants for immediate gratification over the needs of others. And perhaps, even worse, we do not merely allow this impatience and irritation to fester in our minds and hearts, but we do not control the tongue and then speak poisoned words to others, mistreating them simply because we were impatient, or as though what we wanted was more important than what others need or want.
All of, or at least most of, these things I am guilty of. And I imagine most would acknowledge they are guilty of these too, at least some days.
But because circumstances can be so highly varied, and the many permutations of what can go through our mind, what can be felt in our heart, and the many possible ways these things can explode or enter out through our mouth or our actions into the world and toward others around us is so vast. And because we do not always even always recognize the wrong as wrong--perhaps we justify it to ourselves in the moment, and do not even consider to repent of it even later, or even forget all about it an hour, or a few days later, we just continue on as though we had done nothing wrong. New day, new trials, nevermind what I did yesterday.
But sin, in every form, in every way it permeates our mind, our heart, our words, our actions, and our general expression of ourselves in this world is so toxic and disastrous and destructive. It consumes us from within, it destroys others, it destroys ourselves, it kills us, it kills our relationships with other people. It is poison. Our minds, our bodies, our hearts, and our souls are corrupted by it, consumed by it, destroyed by it.
It is not always the obvious and "big" sins that often wreak the most destructive harm on us--but all the hidden and "little" sins that accumulate and fester and worm their way into our hearts to not just destroy us, but even would seize the opportunity to shipwreck our faith in Christ if given free reign that is truly a disaster.
When Scripture says, "Make sure your sins find you out", it speaks vast amounts of wisdom. Our sin must be exposed, either to the cleansing fire of repentance, or else it will be exposed to the fire of the Day of Judgment. But either way, everything will be exposed; but better to be burned by the healing grace found in repentance which purifies; than to be burned in the all consuming Judgment that awaits us all on the Last Day.
-CryptoLutheran
