1)
Why does it say "Peh Lahem v'Lo Yedaberun"?
1.
Radak: Refer to 115:5:1:1 and the note there.
2.
Malbim (here and 115:5): Their form is lowly. The form of man is speech, and the form of living beings is sensation and motion. They lack these, like the verses describe.
2)
Why does it mention all their limbs?
1.
Malbim: Refer to 135:6:1:1.
