Do not snatch the word of truth from my mouth,
for I have put my hope in your laws.
Psalm 119:43
It is well known that men do, when persecution
threatens, either altogether deny the truth, or
weakly and lukewarmly confess it; but lest this
should happen to him,
David therefore prays here,
” O Lord, take not the word of truth utterly out
of my mouth,” i.e., make me, with an intrepid
spirit, always to confess the avowed truth boldly
and manfully.
Solomon Gesner (1559-1665)
from studylight.org commentaries