Caravaggio, Saint Jerome Writing (c. 1605), Galleria Borghese. Public domain.
2 verses in the King James Version. Word study for “mouth” →
Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.
And for me, that utterance may be given unto me, that I may open my mouth boldly, to make known the mystery of the gospel,