Matthew 13:25

Verse 25. While men slept, his enemy came, etc. That is, in the night, when it could be done without being seen, an enemy came and scattered bad seed on the new-ploughed field, perhaps before the good seed had been harrowed in. Satan thus sows false doctrine in darkness. In the very place where the truth is preached, and while the hearts of people are open to receive it, by false but plausible teachers, he takes care to inculcate false sentiments. Often it is one of his arts, in a revival of religion, to spread secretly dangerous notions of piety. Multitudes are persuaded that they are Christians, who are deceived. They are awakened, convicted, and alarmed. They take this for conversion.