Expositor's Bible Commentary Commentary Galatians 6:7

"Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap." — Galatians 6:7 (ASV)

The special advice of v.6 is now enlarged to benevolence in general, and the principle that ties everything together is stated: “A man reaps what he sows.” This is an immutable law of God, which the phrase “God cannot be mocked” emphasizes. Consequently, though people may fool themselves (by sowing little but expecting much), they cannot fool God, and the results of their poor sowing will be manifest.