Translation:

67. So Moses conceived in his mind a (sort of) fear.

Notes (Tafseer)

2590. The concerted attack of evil is sometimes so well contrived from all points that falsehood appears and is acclaimed as the truth. The believer of truth is isolated, and a sort of moral dizziness creeps over his mind. But by Allah's grace Faith asserts itself, gives him confidence, and points out the specific truths which will dissipate and destroy the teeming brood of falsehood.