Translation:

143. (They are) distracted in mind even in the midst of it being (sincerely) for neither one group nor for another. Whom Allah leaves straying never wilt thou find for him the way.

Notes (Tafseer)

651. If we choose evil deliberately and double our guilt by fraud and deception, we do not deceive Allah, but we deceive ourselves. We deprive ourselves of the Grace of Allah, and are left straying away from the Path. In that condition who can guide us or show us the Way? Our true and right instincts become blunted: our fraud makes us unstable in character; when our fellow-men find out our fraud, any advantages we may have gained by the fraud are lost; and we become truly distracted in mind.