'Cursing' in the Bible

His mouth is full of cursing and deceit and false words: under his tongue are evil purposes and dark thoughts.

Their only thought is to put him down from his place of honour; their delight is in deceit: blessing is in their mouths but cursing in their hearts. (Selah.)

As he took pleasure in cursing, so let it come on him; and as he had no delight in blessing, let it be far from him.

He put on cursing like a robe, and it has come into his body like water, and into his bones like oil.