Honest questions
What is sin?
Sin is the breaking of relationship with God and the damage that follows, in what we do, what we fail to do, and what we are. The words behind it include missing a mark, crossing a line and rebellion. It is not primarily rule-breaking. It is a life turned away from the source it was made for.
The words behind the word
The main Hebrew and Greek terms translated as sin carry the sense of missing a target. Others mean crossing a boundary, twisting something out of shape, or rebelling against a rightful authority. Together they describe something wider than a list of forbidden acts: a general failure to be what we were made to be, showing up in actions, omissions and the settled shape of a character. That is why Scripture can speak of sin in the singular, as a condition, as well as in the plural, as things done.
Not only what you do
Jesus repeatedly moves the question inward, from the act to the desire behind it, which makes the standard harder rather than easier. James adds that knowing the good thing to do and not doing it is also sin, which rules out the defence of having harmed nobody. And Scripture speaks of sin that is structural, built into systems of weights, wages and courts rather than only into individual choices. The prophets spend much of their material on precisely that, and it is rarely the part people quote.
Why the Bible treats it so seriously
Not because God is easily offended, but because of what the Bible thinks people are for. If we were made for relationship with God and with each other, then anything that corrodes that is not a technical infraction but real damage, and damage that spreads. Isaiah describes it as something that separates rather than something that annoys. The seriousness is proportional to the value of what is being broken. That is also why the answer offered is restoration rather than a lowered standard.
What it is not
It is not a tool for controlling people, and it has often been used as one. It is not identical to whatever a given culture finds distasteful, and confusing the two has done real harm. It is not a reason to live in shame, since the whole point of the surrounding material is that the problem has an answer. And it is not a ranking system for sorting other people, given that the passage most often quoted here says everyone is in the same position.
In the text
Where this comes from
Quoted from the World English Bible, which is public domain. Read the surrounding chapter in whatever translation you own.
for all have sinned, and fall short of the glory of God.
Everyone who sins also commits lawlessness. Sin is lawlessness.
But your iniquities have separated you and your God, and your sins have hidden his face from you.
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