'Slack' in the Bible

The hand of the diligent will rule,But the slack hand will be put to forced labor.

He also who is slack in his workIs brother to him who destroys.

If you are slack in the day of distress,Your strength is limited.

Your tackle hangs slack;It cannot hold the base of its mast firmly,Nor spread out the sail.Then the prey of an abundant spoil will be divided;The lame will take the plunder.