וּתְקַעְתִּ֥יו יָתֵ֖ד בְּמָק֣וֹם נֶאֱמָ֑ן וְהָיָ֛ה לְכִסֵּ֥א כָב֖וֹד לְבֵ֥ית אָבִֽיו׃
און איך װעל אים באַפֿעסיטקן װי אַ פֿלעקלאין אַ זיכערן אָרט; און ער װעט זײַן אַ טראָן פֿון כּבֿוד פֿאַר זײַן פֿאָטערס הױז.
Rashi
And I will thrust him like a peg in a sure place (Jonathan renders:) And I will appoint him a faithful trustee, serving in a sure place. Jonathan renders נֶאֱמָן as sure, i.e., a place that is faithful to those who lean on it, for it shall not move. Another explanation is to reverse the word order of the verse: And I will thrust him a sure peg in a place.
Ibn Ezra
יתד As a nail. כיתד ═ יתד. Comp. וכעיר ═ ועיר And like a wild ass (Job 11:12)