What does Psalm 52:3 mean?

David has condemned Doeg, the Edomite herder who murdered innocent priests at the command of King Saul (1 Samuel 22:9–10, 17–19). This seems to have involved deceit (Psalm 52:2), possibly by Doeg exaggerating how much aid the priests had given to David, whom Saul perceived as an enemy. Doeg's evil words led to the slaughter of many people (Psalm 52:2). His motive was probably self-promotion. Rather than being honest, or declaring Saul's order to murder priests a sin, he preferred to do what was wrong.

Jesus warned His disciples about evil men who would persecute them. He said, "Then they will deliver you up to tribulation and put you to death, and you will be hated by all nations for my name's sake" (Matthew 24:9). Jesus described the Devil and the scribes and Pharisees as liars. He told them: "You are of your father the devil, and your will is to do your father's desires. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he lies, he speaks out of his own character, for he is a liar and the father of lies" (John 8:44).

The Hebrew word selah is not well understood. It seems to refer to a musical pause, or to be a call for reflection.