Galatians 6:7

Verse 7. But not deceived. That is, in regard to your character, and your hopes for eternity. This is a formula of introduction to some admonition that is peculiarly weighty and important. It implies that there was danger that they would be deceived in reference to their character. The sources of the danger were the corruption of their own hearts, the difficulty of knowing their true character, the instructions of false teachers, etc. See Barnes "1 Co 6:9". God is not mocked. He cannot be imposed on, or mocked. He knows what our real character is, and he will judge us accordingly.