'Thickest' in the Bible

‘Through your messengers you have reproached the Lord,And you have said, “With my many chariotsI came up to the heights of the mountains,To the remotest parts of Lebanon;And I cut down its tall cedars and its choice cypresses.And I entered its farthest lodging place, its thickest forest.

“Through your servants you have reproached the Lord,And you have said, ‘With my many chariots I came up to the heights of the mountains,To the remotest parts of Lebanon;And I cut down its tall cedars and its choice cypresses.And I will go to its highest peak, its thickest forest.