This link is a short audio reflection on two verses in the "songs of Ascent" for Matins on Sunday, Tone 5.
"When I am filled with sorrow, I sing unto Thee like David, O my Saviour: Deliver my soul from a lying tongue"
"Let Thy right hand, which toucheth me, O Christ, preserve me from all deception"
The first verse recalls the Psalm verse: "Deliver my soul, O Lord, from unjust lips, and from a deceitful tongue." (Psa 120:2 Brenton)
There is an important double meaning here that is very useful to understand.
My pastoral prayer for all my flock is that they wold understand this, and seek out ways to be free from their internal "lying tongue".