[dragonwriter]

> Except that when you say "failure to obey God" you mean "failure to behave as christians have defined a supposed god wants you to behave",

Its a not-uncommon bit of Christian theology that sin is not acting how God has specifically and personally directed you, individually, to behave.

Now, Christians holding to that model have (varying, even among Christians) beliefs, to which they ascribe varying degrees of certainty, about things which they thing God commands of all people generally, which are therefore incorporated into that. But those beliefs are conceptually separate from the definition of sin.