'Assemble' in the Bible

Declare in Judah and proclaim in Jerusalem, and say,“Blow the trumpet in the land;Cry aloud and say,‘Assemble yourselves, and let us goInto the fortified cities.’

Why are we sitting still [the people wonder]?Assemble yourselves, and let us enter the fortified citiesAnd let us die there,For the Lord our God has decreed our ruinAnd given us bitter and poisonous water to drink,Because we have sinned against the Lord.

“Is My inheritance like a speckled bird of prey to Me [unlike the others]?Are the birds of prey (enemies) surrounding her on every side?Go, gather all the [wild] beasts of the field;Bring them to devour [her]!