'Gird Yourselves' in the Bible

“For this reason, put on sackcloth [for mourning],Lament (mourn with expressions of grief for the dead) and wail,For the fierce anger of the LordHas not turned back from us.”

“Wail, O Heshbon, for Ai [in Ammon] has been destroyed!Cry out, O daughters of Rabbah!Wrap yourselves with sackcloth and lament (cry out in grief),And rush back and forth inside the enclosures;For Malcam [your powerless god] will go into exileTogether with his priests and his princes.