'Thick' in the Bible

Jesus said, “Have the people sit down [to eat].” Now [the ground] there was [covered with] an abundance of grass, so the men sat down, about 5,000 in number.

And angels who did not keep their own designated place of power, but abandoned their proper dwelling place, [these] He has kept in eternal chains under [the thick gloom of utter] darkness for the judgment of the great day,

The second angel poured out his bowl into the sea, and it turned into blood like that of a corpse [foul and disgusting]; and every living thing in the sea died.

For this reason in a single day her plagues (afflictions, calamities) will come, pestilence and mourning and famine, and she will be burned up with fire and completely consumed; for strong and powerful is the Lord God who judges her.