Jeremiah 48:10

Cursed is the one who is remiss in doing the work of the Lord, and cursed is he who withholds his sword from bloodshed.
BSB · Berean Standard Bible
Cursed be he that doeth the work of the Lord deceitfully, and cursed be he that keepeth back his sword from blood.

Note deceitfully: or, negligently

KJV · King James Version
“Cursed is he who does the work of the Lord negligently; and cursed is he who keeps back his sword from blood.
WEB · World English Bible
Cursed be he that doeth the work of Jehovah negligently; and cursed be he that keepeth back his sword from blood.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

Cursed
Jeremiah 50:25; Numbers 31:14–18; Judges 5:23; 1 Samuel 15:3, 9, 13–35; 1 Kings 20:42