A wise son heareth his father’s instruction: but a scorner heareth not rebuke.  A man shall eat good by the fruit of his mouth: but the soul of the transgressors shall eat violence.  He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.

Proverbs 13:1-3

Jesus had a few words about the words we speak:

“But those things which proceed out of the mouth come forth from the heart; and they defile the man.”  Matthew 15:18.

Before that He said,

” Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.”  Matthew 15:11

Do not ye yet understand, that whatsoever entereth in at the mouth goeth into the belly, and is cast out into the draught?”  Matthew 15:17

So we must pay attention to the words we use when speaking, guard and keep out mouth from speaking ill of others, with other sinners,