וַיַּעֲלֵ֤נִי ׀ מִבּ֥וֹר שָׁאוֹן֮ מִטִּ֪יט הַיָּ֫וֵ֥ן וַיָּ֖קֶם עַל־סֶ֥לַע רַגְלַ֗י כּוֹנֵ֥ן אֲשֻׁרָֽי׃
He brought me up also out of the tumultuous pit, out of the miry clay; and He set my feet upon a rock, He established my goings.
Rashi on Psalms
out of the roaring pit From the imprisonment of Egypt and from the roaring of their tumult.
Rashi on Psalms
from the thick mire From the sea. היון is an expression of mud, fanyas in Old French (fange in modern French), slime.