But if ye have bitter envying and strife in your hearts, glory not, and lie not against the truth.
If ye have - as is the case (Greek indicative).
Bitter (Ephesians 4:31).
Envying, х zeelon (G2205)] - zeal: generous emulation is not condemned, but "bitter" (Bengel).
Strife, х eritheian (G2052)] - 'rivalry:' cabal, faction (note, Galatians 5:20).
In your hearts - from which flow words and deeds, as from a fountain.
Glory not, and lie not against the truth. To boast of wisdom which your lives evince not, is virtually lying against the Gospel truth. James 3:15; James 1:18, "the word of truth." Romans 2:17; Romans 2:23, warns such "contentious" Jewish Christians.