Whose mouth speaketh vanity, and their right hand is a right hand of falsehood.
Whose mouth speaketh vanity (Hebrew, shaaw' (H7723 ); distinct from hebel (H1892 ), Psalms 144:4 , 'a vapour'), and their right hand is a right hand of falsehood - (Psalms 12:2; Psalms 41:6.) The right hand is lifted up in taking an oath: the sense is, They swear to falsehood (Yarchi). The parallelism favours this; or else Hengstenberg's explanation, 'their right hand,' professedly given in token of friendship (2 Kings 10:15), is really given in falsehood: as "Joab took Amasa ... with the right hand to kiss him," and then stabbed him (2 Samuel 20:9).