'Chasm' in the Bible

For there is nothing trustworthy or reliable or truthful in what they say;Their heart is destruction [just a treacherous chasm, a yawning gulf of lies].Their throat is an open grave;They [glibly] flatter with their [silken] tongue.

“Leave the cities and dwell among the crags,O inhabitants of Moab,And be like a dove that nestsBeyond the mouth of the chasm.

Besides all this, a great chasm has been fixed between us and you, so that those who want to pass over from here to you cannot; neither can those from there cross over to us.’