'Put on' in the Bible

“For this, put on sackcloth,Lament and wail;For the fierce anger of the LordHas not turned back from us.”

O daughter of my people, put on sackclothAnd roll in ashes;Mourn as for an only son,A lamentation most bitter.For suddenly the destroyerWill come upon us.

“Harness the horses,And mount the steeds,And take your stand with helmets on!Polish the spears,Put on the scale-armor!