Romans 7:14
for we know that the law is spiritual: but I am carnal, sold a slave to sin.
Matthew 12:34-35
O degenerate race, how can ye, wicked as ye are, utter any thing that is good? for "'tis the overflowing of the heart that the mouth dischargeth."
Romans 7:12
wherefore the law is holy; and the commandment holy, and just, and good.
Ephesians 4:29
let no obscene language defile your mouth, use only such as tends to edification, that it may be beneficial to the hearers.
Colossians 4:6
let an air of modesty appear in all your discourse; and let it be seasoned with discretion, in making a proper reply, when you are call'd into question.