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。
Rashi
from trusty men Even from trusty men. (Even to those who believe in Him. Etz Chayim ms.) Sometimes his lips become confused, speaking improper words, e.g. Abraham (about whom it is written:] (Gen. 15:6), And he believed in the Lord.” And later, he stumbled [by saying,] “How will I know?”