פֶּן־יִטְרֹ֣ף כְּאַרְיֵ֣ה נַפְשִׁ֑י פֹּ֝רֵ֗ק וְאֵ֣ין מַצִּֽיל׃
Lest he tear my soul like a lion, Rending it in pieces, while there is none to deliver.
Pirkei DeRabbi Eliezer
The prayer of Samuel destroyed the power of the children of Agag against Israel, as it is said, "And Samuel broke Agag before the Lord in Gilgal" (ibid.).