'Even' in the Bible

Will not the day of the Lord be darkness, instead of light,Even very dark with no brightness in it?

Hear this, you who trample down the needy, and do away with the poor of the land,

“People shall stagger from sea to sea [to the very ends of the earth]And from the north even to the east;They will roam here and there to seek the word of the Lord [longing for it as essential for life],But they will not find it.