'Elders' in the Bible

Hear this, you elders;listen, all you inhabitants of the land.Has anything like this ever happened in your daysor in the days of your ancestors?

Sanctify ye a fast, call a solemn assembly, gather the elders and all the inhabitants of the land into the house of the LORD your God, and cry unto the LORD,

Gather the people, sanctify the congregation, assemble the elders, gather the children, and those that suck the breasts: let the bridegroom go forth of his chamber, and the bride out of her closet.

And it will happen afterward thus: I will pour out my Spirit on all flesh, and your sons and your daughters will prophesy, and your elders will dream dreams; your young men shall see visions.