Daf Hashavua
Megillah 3a
מי הוא זה שגילה סתריי לבני אדם, עמד
יונתן בן עוזיאל – אני הוא שגליתי סתריך
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The Yavetz writes that the Targum does not contain any Kabalistic
secrets etc.
The Pshat in the Gemoro of סתריי
refers to
unknown information.
Similar to the Gemoro
in Shabbos 96 where the Gemoro discloses who the מקושש was. (the
Torah doesn't say who he was) The Targum also discloses additional information
not mentioned in the Pesukim.
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יונתן בן עוזיאל never wrote a Targum on Torah only on Nach. Most Chumashim name it
"Targum Yonoson Ben Uziel" which is wrong. It is a second version of
Targum Yerushalmi.
Some claim The Targum Yonoson Ben Uziel printed on Nach* is also not from him.
*the one he did write was lost
