In Jeremiah 50:21, the same command to execute judgment thoroughly mirrors the curse on slackness here.

Numbers 31:14-18 shows Moses rebuking the officers for sparing Midianite women — a direct example of not keeping back the sword from blood.

Judges 5:23 curses Meroz for not coming to help the Lord against the mighty — same theme of failing to execute God's judgment.

1 Samuel 15:3 commands Saul to utterly destroy Amalek — the kind of total judgment that Jeremiah 48:10 demands.

1 Samuel 15:9 describes Saul sparing Agag and the best livestock — a clear case of keeping back the sword, incurring the curse.

1 Samuel 15:13-35 recounts Saul's partial obedience and Samuel's rebuke — illustrating doing God's work deceitfully and the consequences.

1 Kings 20:42 pronounces judgment on Ahab for sparing Ben-hadad — a direct parallel to keeping back the sword from God's devoted enemy.

Numbers 31:15 records Moses asking 'Have you saved all the women alive?' — directly questioning the act of sparing lives, which Jeremiah 48:10 curses.

Deuteronomy 20:17 commands the complete destruction of Canaanite nations — a template for the 'work of the Lord' that must not be done deceitfully.

Joshua 10:40 reports Joshua utterly destroying all, leaving none — a positive example of not keeping back the sword in God's judgment.

In 1 Samuel 15:33, Samuel hacks Agag without keeping back his sword — the obedience commanded here.

In 1 Samuel 28:18, Saul is condemned for not carrying out God's wrath on Amalek — exactly the slackness cursed here.

In 1 Kings 18:40, Elijah slaughters Baal's prophets — not keeping back his sword in God's work.

In Malachi 1:14, a curse on offering blemished sacrifices parallels cursing slackness in God's work.