Thou art my King, O God: command deliverances for Jacob.
My king — The whole people speak as one man, being united in one body.
 Thou hast given us like sheep appointed for meat; and hast scattered us among the heathen.
Scattered — Those who were not slain are carried into captivity, and dispersed in several places.
 For the voice of him that reproacheth and blasphemeth; by reason of the enemy and avenger.
Avenger — Who executeth both God's and his own vengeance upon me.
 All this is come upon us; yet have we not forgotten thee, neither have we dealt falsely in thy covenant.
Yet — Although we cannot excuse ourselves from many other sins, yet through thy grace we have kept ourselves from apostacy and idolatry, notwithstanding all examples and provocations.
 Our heart is not turned back, neither have our steps declined from thy way;
Turned — From thy worship to idols.
 Though thou hast sore broken us in the place of dragons, and covered us with the shadow of death.
Broken us — By inflicting upon us one breach after another, thou hast at last brought us to this pass.
The place — A place extremely desolate, such as dragons love, Isaiah 13:21,22, and therefore full of horror, and danger.
Covered us — With deadly horrors and miseries.
 Yea, for thy sake are we killed all the day long; we are counted as sheep for the slaughter.
Yea — Because we are constant in thy worship, which they abhor.
 For our soul is bowed down to the dust: our belly cleaveth unto the earth.
Our soul — Our persons.
Our belly — We are not only thrown down to the earth, but we lie there like dead carcases.