Miriam sang: “Sing to the Lord, for he has triumphed gloriously (Exodus 15:21).”
Miriam and Aaron spoke against Moses and the Lord heard it (from Numbers 12:1-2).
The tongue is a restless evil, full of deadly poison. With it with bless our Lord and Father, and with it we curse people who are made in the likeness of God. From the same mouth come both blessing and cursing (James 3:8-10).
My friends, this ought not to be.