PURPORT

In the Matsya Purana it is said:

ananta-saktir bhagavan
matsya-rupi janardanah
kridartham yacayam asa
svayam satyavratam nrpam

"The Supreme Personality of Godhead possesses unlimited potency. Nonetheless, in His pastime in the form of a fish He begged protection from King Satyavrata."