1 Samuel
Talk no more so exceeding proudly; let not arrogancy come out of your mouth: for the Lord is a God of knowledge, and by him actions are weighed. 2:3
Luke
And whosoever shall speak a word against the Son of man, it shall be forgiven him: but unto him that blasphemeth against the Holy Ghost it shall not be forgiven. 12:10
Psalms
The Lord shall cut off all flattering lips, and the tongue that speaketh proud things: 12:3
Keep thy tongue from evil, and thy lips from speaking guile. 34:13
Proverbs
The wicked is snared by the transgression of his lips: but the just shall come out of trouble. 12:13
Lying lips are abmonination to the Lord: but they that deal truly are his delight. 12:22
Go from the presence of a foolish man, when thou perceivest not in him the lips of knowledge. 14:7
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness. 15:2
A wholesome tongue is a tree of life: but perverseness therein is a breach in the spirit. 15:4
The lips of the wise disperse knowledge: but the heart of the foolish doeth not so. 15:7
A fool's mouth is his destruction, and his lips are the snare of his soul. 18:7
Pleasant words are as an honeycomb, sweet to the soul, and health to the bones. 16:24
Whoso keepeth his mouth and his tongue keepeth his soul from troubles. 21:23
Speak not in the ears of a fool: for he will despise the wisdom of thy words. 23:9
Hebrews
Let your conversation be without covetousness; and be content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee. 13:5
James
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. 1:26
But the tongue can no man tame; it is an unruly evil, full of deadly poison. 3:8
1 Peter
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: 3:10