Following on from the post about Nahmanides and his view of the godhead in the Akedah episode, this article about divine ontology by Daniel Abrams is fascinating.
Note in particular his chapter on Metatron and Jesus:
Considering the wide range of traditions in Jewish sources discussing Ezekiel’s vision of a human form on the divine throne, one would expect to find warnings in Jewish texts against confusing this divine manifestation with Jesus. In fact, Yehuda Liebes has brought to our attention the striking identification of Metatron with Jesus in the liturgy and the reverberations of these traditions in passages of the printed edition of The Seventy Names of Metatron and in later kabbalistic works. Liebes argues that the reference to Jesus stems from antiquity and is represented textually as “Yeshua, prince of the countenance,” a clear reference to the angelic Metatron. As Liebes shows through a separate example, these associations and literary traditions stem from Jewish-Christian circles and found their way into canonical Jewish texts.