doubletongued

2 occurrences across the corpus

King James Version

1 Timothy 3:8

Likewise must the deacons be grave, not doubletongued, not given to much wine, not greedy of filthy lucre;

KJV Apocrypha (Catholic Deuterocanon)

Sirach (Ecclesiasticus) 28:13

Curse the whisperer and doubletongued: for such have destroyed many that were at peace.