There is immense power in something so simple and small as our tongue. We are commanded to wield this power wisely. God desires for us to use our tongue to bring Him glory, to edify others, and to proclaim the Gospel to everyone.
The bible is very clear how the tongue can be very dangerous. There are several bible verses which support this headline
BIBLE VERSE HOW DANGEROUS THE TONGUE IS.
James 3:3-6 “The tongue is a small thing that makes grand speeches. But a tiny spark can set a great forest on fire. And among all the parts of the body, the tongue is a flame of fire. It is a whole world of wickedness, corrupting your entire body. It can set your whole life on fire, for it is set on fire by hell itself.”
Proverbs 18:20-21 “From the fruit of their mouth a person’s stomach is filled; with the harvest of their lips they are satisfied. The tongue has the power of life and death, and those who love it will eat its fruit.”
Two of the Ten Commandments speak specifically about sins committed with the tongue: using the Lords name in vain, and bearing false witness against someone else (Exodus 20:7