All thy commandments are faithful - Margin, “faithfulness.” The idea in the Hebrew is that they are worthy to be relied on. They are founded in truth, and they should secure our confidence.
They persecute me wrongfully ... - Hebrew, a “lie, “or “falsehood.” That is, There is a “lie” or “falsehood” at the foundation of their persecutions. Those persecutions are not based on any just views of what I am, or of the treatment which I ought to receive at the hand of my fellow-men. They charge on me tilings which are not true, and they act accordingly. See the notes at Psalms 119:78.