The relationship between a pure devotee and the Supreme Personality of Godhead is extremely relishable. A devotee never claims to be very powerful himself; instead, he fully surrenders to the lotus feet of Krishna, being confident that in all dangerous conditions Krishna will protect His devotee. A demon may think that he can harm a devotee but the fact is that nobody can harm a devotee because he is personally protected by the Lord himself.
Being ignorant of the above fact now Hiraṇyakaśipu is going to start his end by rebuking Prahalad Maharaj.