Out of the Same Mouth Proceedeth Blessing and Cursing | Jeffrey R. Holland

The voice that bears profound testimony, utters fervent prayer, and sings the hymns of Zion can be the same voice that berates and criticizes, embarrasses and demeans, inflicts pain and destroys the spirit of oneself and of others in the process. “Out of the same mouth proceedeth blessing and cursing,” James grieves. “My brethren [and sisters], these things ought not so to be.”

Jeffrey R. Holland, The Tongue of Angels, General Conference for The Church of Jesus Christ of Latter-day Saints, April 2007

https://www.churchofjesuschrist.org/study/general-conference/2007/04/the-tongue-of-angels?id=p15&lang=eng#p15