Whole chapter discussed by Augustine of Hippo —
Why Do You Boast of Evil?
(1 Samuel 22:6–23)
For the choirmaster. A Maskil of David. After Doeg the Edomite went to Saul and told him, “David has gone to the house of Ahimelech.”
1Why do you boast of evil, O mighty man?
The loving devotion of God endures all day long.
2Your tongue devises destruction
like a sharpened razor,
O worker of deceit.
3You love evil more than good,
falsehood more than speaking truth.
Selah
4You love every word that devours,
O deceitful tongue.
5Surely God will bring you down to everlasting ruin;
He will snatch you up and tear you away from your tent;
He will uproot you from the land of the living.
Selah
6The righteous will see and fear;
they will mock the evildoer, saying,
7“Look at the man
who did not make God his refuge,
but trusted in the abundance of his wealth
and strengthened himself by destruction.”
8But I am like an olive tree
flourishing in the house of God;
I trust in the loving devotion of God
forever and ever.
9I will praise You forever,
because You have done it.
I will wait on Your name—
for it is good—
in the presence of Your saints.