10. Out of the same mouth come forth blessing and cursing. These things, my brethren, ought not to be so.
11. Does a fountain send forth [simultaneously] from the same opening fresh water and bitter?
12. Can a fig tree, my brethren, bear olives, or a grapevine figs? Neither can a salt spring furnish fresh water.
13. Who is there among you who is wise and intelligent? Then let him by his noble living show forth his [good] works with the [unobtrusive] humility [which is the proper attribute] of true wisdom.
14. But if you have bitter jealousy (envy) and contention (rivalry, selfish ambition) in your hearts, do not pride yourselves on it and thus be in defiance of and false to the Truth.
15. This [superficial] wisdom is not such as comes down from above, but is earthly, unspiritual (animal), even devilish (demoniacal).