James 3:1-12 is a well known portion of scripture about the mighty fires set by a small tongue. We put bits in horses mouths and rudders on great ships to steer them, and the tongue is a small member as well that boasts of great things.
The ESV and NIV subject headings title this passage Taming the Tongue. I prefer the NKJV headline, The Untamable Tongue. James doesn’t give a command to tame the tongue or instructions on how one might do so. He actually writes that “no human being can tame the tongue.” He compares blessings and cursings coming from the same mouth to a spring that gives fresh and salt water, concluding that “these ought not to be so.” He does not say, however, that anything can be done about it.