James 3:3-6 (KJV)
3 Behold, we put bits in the horses’ mouths, that they may obey us; and we turn about their whole body.
4 Behold also the ships, which though they be so great, and are driven of fierce winds, yet are they turned about with a very small helm, whithersoever the governor listeth.
5 Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!
6 And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell.
Some sins of the tongue…
A proud look, a lying tongue, and hands that shed innocent blood,
-Proverbs 6:17 (KJV)
Bless them which persecute you: bless, and curse not.
– Romans 12:14 (KJV)
Thou shalt not go up and down as a talebearer among thy people: neither shalt thou stand against the blood of thy neighbour: I am the LORD.
– Leviticus 19:16 (KJV)
Of these things put them in remembrance, charging them before the Lord that they strive not about words to no profit, but to the subverting of the hearers.
– 2 Timothy 2:14 (KJV)
He that backbiteth not with his tongue, nor doeth evil to his neighbour, nor taketh up a reproach against his neighbour.
– Psalm 15:3 (KJV)
A soft answer turneth away wrath: but grievous words stir up anger.
– Proverbs 15:1 (KJV)
For he that will love life, and see good days, let him refrain his tongue from evil, and his lips that they speak no guile:
– 1 Peter 3:10 (KJV)
They speak vanity every one with his neighbour: with flattering lips and with a double heart do they speak. The LORD shall cut off all flattering lips, and the tongue that speaketh proud things:
– Psalm 12:2-3 (KJV)
Best remedy for an unruly tongue
A good man out of the good treasure of his heart bringeth forth that which is good; and an evil man out of the evil treasure of his heart bringeth forth that which is evil: for of the abundance of the heart his mouth speaketh.
– Luke 6:4-5 (KJV)
James 1:26 (KJV)
If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart,
this man’s religion is vain.