מֵסִ֣יר שָׂ֭פָה לְנֶאֱמָנִ֑ים וְטַ֖עַם זְקֵנִ֣ים יִקָּֽח׃
祂使忠信的人說不出話來，又奪去長老的見識。
Radak
"From the reasoning of the king"- Meaning to say, from his counsel and his intelligence, [both] he and his nobles- they all agreed to this. And similarly [it uses this word in the verses]: "He takes the reasoning of elders" (Iyov 12:20), "When he changed his sanity"(Tehillim 34:1), and those similar to them, and [Targum] Yonatan translates: "From the decree of the king."