John Wesley on 1 Samuel 27:10

David - These and the following words are ambiguous, and contrary to that simplicity which became David, both as a prince, and as an eminent professor of the true religion. The fidelity of Achish to him, and the confidence he put in him, aggravates his sin in thus deceiving him, which David seems penitently to reflect on, when he prays, Remove from me the way of lying.