The Bible
James 3
By governing the tongue, we gain perfection—Heavenly wisdom is pure, peaceable, and full of mercy.
1My brethren, be not many masters, knowing that we shall receive the greater condemnation.
8But the tongue can no man tame; it is an unruly evil, full of deadly poison.
11Doth a fountain send forth at the same place sweet water and bitter?
14But if ye have bitter envying and strife in your hearts, glory not, and lie not against the truth.
15This wisdom descendeth not from above, but is earthly, sensual, devilish.
16For where envying and strife is, there is confusion and every evil work.
18And the fruit of righteousness is sown in peace of them that make peace.