1 Samuel 21:2

And David said unto Ahimelech, the priest, The king hath commanded me a business, and hath said unto me, Let no man know anything of the business whereabout I send thee, and what I have commanded thee, he was to reveal neither the reason for, nor the contents of, his commission; and I have appointed my servants to such and such a place. The glib falsehood which David here told had evil results, and was not even justified by the fact that Ahimelech might have refused to assist him in case he had known that he was fleeing from the wrath of the king.