“My words will express the uprightness of my heart,
And my lips will speak what they know with utter sincerity.

For He established a testimony (a specific precept) in Jacob
And appointed a law in Israel,
Which He commanded our fathers
That they should teach to their children [the great facts of God’s transactions with Israel],

For every head is [shaven] bald and every beard cut off; there are cuts (slashes) on all the hands and sackcloth on the loins [all expressions of mourning].