John 8:44 You are of your father the devil, and the lusts of your father you will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaks a lie, he speaks of his own: for he is a liar, and the father of it.
1st Samuel 22:16 And the king said you shalt surely die Ahimelech, thou, and all thy father's house. 17 And the king said unto the footmen that stood about him, Turn, and slay the priests of the Lord: because their hand also is with David, and because they knew when he fled, and did not shew it to me. But the servants of the king would not put forth their hand to fall upon the priests of the Lord.
1st Samuel 22:18 And the king said to Doeg, turn thou, and fall upon the priests. And Doeg the Edomite turned, and he fell upon the priests, and slew on that day fourscore and five persons that did wear a linen ephod. 19 And Nob, the city of the priests, smote he with the edge of the sword, both men and women, children and sucklings, and oxen, and asses, and sheep, with the edge of the sword.
[Patriarchs & Prophets pp 655] David knew not whither to flee for refuge, except to the servant of God. The young man was in constant fear of discovery, and in his extremity, he resorted to deception. Here he manifested a want of faith in God, and his sin resulted in causing the death of the high priest. God requires that truthfulness shall mark His people even in the greatest peril.
John 8:31 Then said Jesus to those Jews which believed on him, If you continue in my word, then are you my disciples indeed; 32 And you shall know the truth, and the truth shall make you free.
May The Lord add His blessing to the study of His word. God bless!