'Clifts' in the Bible

To dwell in the clifts of the valleys, in caves of the earth, and in the rocks.

Enflaming yourselves with idols under every green tree, slaying the children in the valleys under the clifts of the rocks?

The pride of thy heart hath lifted thee up, O dweller in clifts of a rock, (A high place is his habitation, He is saying in his heart, 'Who doth bring me down to earth?')