Galatians 6:7-8,
7. Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap.
8. For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the Spirit reap life everlasting.
Corruption never overtakes anything in a moment. It's a slow burn, occurring little by easy to ignore little. A mis-step here, and/or a rationalization there, an unwarranted action or attitude that seemingly had no major consequences or repercussions. These all, through the flesh, can and will corrupt. But you might not notice it until years down the road, when you look at your ruined life, marriage, ministry, or relationships, and ask yourself in agony "How could this have happened?!"
And as you go about trying to figure things out, because the corruption was so slow to take hold, you'll never remember what it was specifically that got the ball rolling.
Hopefully though, a friend will come along at the right time and help you see that it all began the moment you decided to "mock God", then tried to get away with it.
If you are mocking God, you won't feel the effects for a long time. But they are coming, and in the final analysis, all that's going to remain of you is the decayed husk of what might have been.