וְיָצָ֧אתִי אַחֲרָ֛יו וְהִכִּתִ֖יו וְהִצַּ֣לְתִּי מִפִּ֑יו וַיָּ֣קָם עָלַ֔י וְהֶחֱזַ֙קְתִּי֙ בִּזְקָנ֔וֹ וְהִכִּתִ֖יו וַהֲמִיתִּֽיו׃
我就出去追趕牠，擊打牠，把羊羔從牠口中救了出來。牠起來攻擊我，我就揪住牠的鬍鬚，擊打牠，把牠打死了。
Rashi
ויחזק בו AND HE LAID HOLD OF IT —The phrase signifies “grasping” (אחז). There are many examples of it in the Scriptures: (Genesis 19:16) “The men laid hold of (ויחזיקו בְּ..) his hand”; (Deuteronomy 25:11) “And she layeth hold of (והחזיקה בְּ..) his secret parts”; (I Samuel 17:35) “And I caught him by (והחזקתי בְּ..) his beard”. [Wherever the root חזק in the Hiphil is followed by the preposition ב it denotes “taking hold of a thing”].