Whose mouth is full of cursing and bitterness:
Psalm 10:7 His mouth is full of cursing and deceit and fraud: under his tongue is mischief and vanity.
Psalm 59:12 For the sin of their mouth and the words of their lips let them even be taken in their pride: and for cursing and lying which they speak...
Psalm 109:17,18 As he loved cursing, so let it come to him: as he delighted not in blessing, so let it be far from him...
James 3:10 Out of the same mouth proceeds blessing and cursing. My brothers, these things ought not so to be.