1)
Why does it say "mi'Me'ei ha'Dagah"?
1.
Radak: This is not like bi'Me'ei ha'Dagah (in its innards). Rather, he prayed amidst the affliction. This is like "mi'Beten She'ol" (the coming verse), "mi'Ma'amakim Kerasicha Hashem", "Min ha'Metzar Karasi Kah" (Tehilim 130:1, 118:5).
