Webster's New World College Dictionary:
"double-tongued ... deceitful."
"double talk ... ambiguous and deceptive talk."
Psalms 12:1 Help, LORD; for the godly man ceaseth; for the faithful fail from among the children of men.
2 They speak vanity every one with his neighbour: with flattering lips and with a double heart do they speak.
3 The LORD shall cut off all flattering lips, and the tongue that speaketh proud things:
4 Who have said, With our tongue will we prevail; our lips are our own: who is lord over us?
2 Corinthians 1:18 But as God is true, our word toward you was not yea and nay [NCV: But if you can believe God, you can believe that what we tell you is never both yes and no; NEB: As God is true, the language in which we address you is not an ambiguous blend of Yes and No; Phillips: We solemnly assure you that as certainly as God is faithful so we have never given you a message meaning "yes" and "no"].
1 Timothy 3:8 Likewise must the deacons be grave, not doubletongued, not given to much wine, not greedy of filthy lucre;
9 Holding the mystery of the faith in a pure conscience.
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