Saint Francis of Assisi Poem - Let the whole of mankind tremble

Let the whole of mankind tremble
the whole world shake
and the heavens exult
when Christ, the Son of the living God,
is on the altar
in the hands of a priest.

O admirable heights and sublime lowliness!
O sublime humility!
O humble sublimity!
That the Lord of the universe,
God and the Son of God,
so humbles Himself
that for our salvation
He hides Himself under the little form of bread!
Look, brothers, at the humility of God
and pour out your hearts before Him!
Humble yourselves, as well,
that you may be exalted by Him.

Therefore,
hold back nothing of yourselves for yourselves
so that
He Who gives Himself totally to you
may receive you totally.