Andrew Das, in his comments on Galatians 6:3-5, cites favorably G. Walter Hanson:
Our capacity for self-deception is frightening. It is amazing how blind otherwise brilliant people can be to their own spiritual direction in life. In fact, the more brilliant people are. The more skilled they are at developing rationalizations to deceive themselves and to hid from God. The story of Adam and Eve’s hiding from God behind their skimpy clothes and even skimpier excuses is our common human experience. Paul’s warning needs to be heard, and to be heard often, to warn us against our most brilliant self-deceptions.
Das. A. Andrew Concordia Commentary: Galatians 612