'Slack' in the Bible

We have heard news of it, our hands grow slack, anxiety has grasped us, pain as a [woman who] gives birth.

Then the officials said to the king, "Please, this man must be killed, {because} he [is] making slack the hands of {the soldiers} who are left in this city, and the hands of all the people, by speaking to them words like these, for this man [is] not seeking for welfare to this people, {but only} for harm."

Cursed is the one who is slack in doing the LORD's work. Cursed is the one who holds back his sword from shedding blood.

Damascus has grown slack. She has turned away to flee and panic. Anxiety has seized [her], and labor pains have grasped her, like a woman in labor.

The king of Babylon heard their report and his hands grew slack. Anxiety has seized him, fear and pain like the [woman who] gives birth.