Commentaries:
Jamieson, Fausset, and Brown
The king hath commanded me a business, and hath said unto me, Let no man know—This was a direct falsehood, extorted through fear. David probably supposed, like many other persons, that a lie is quite excusable which is told for the sole purpose of saving the speaker's life. But what is essentially sinful, can never, from circumstances, change its immoral character; and David had to repent of this vice of lying (Psalms 119:29).
Other Jamieson, Fausset, and Brown entries containing 1 Samuel 21:2:
1 Samuel 21:1
Psalms 52:1
Matthew 12:3
 
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