Psalm 12:3 New English Translation

³May the Lord cut off^[a] all flattering lips,
and the tongue that boasts!^[b]

Psalm 12:3 tn The verb form is a jussive, indicating that the statement is imprecatory (“May the Lord cut off”), not indicative (“The Lord will cut off”; see also Ps 109:15 and Mal 2:12). The psalmist appeals to God to destroy the wicked, rather than simply stating his confidence that he will. In this way he seeks to activate divine judgment by appealing to God’s just character. For an example of the power of such a curse, see Judg 9:7-57.
Psalm 12:3 tn Heb “a tongue speaking great [things].”

New English Translation (NET)