Divine countenance

Now have come to you, from your Lord, proofs (to open your eyes): if any will see, it will be for (the good of) his own soul; if any will be blind, it will be to his own (harm): I am not (here) to watch over your doings.In Judaism and Christianity, the concept is the manifestation of God rather than a remote immanence or delegation of an angel, even though a mortal would not be able to gaze directly upon him.

[4] In Jewish mysticism, it is traditionally believed that even the angels who attend him cannot endure seeing the divine countenance directly.

[5] Where there are references to visionary encounters, these are thought to be either products of the human imagination, as in dreams or, alternatively, a sight of the divine glory which surrounds God, not the Godhead itself.

[9] In the Mandaean scripture of the Ginza Rabba (in Right Ginza books 1 and 2.1), the face or countenance of Hayyi Rabbi is referred to as the "Great Countenance of Glory" (Classical Mandaic: ࡐࡀࡓࡑࡅࡐࡀ ࡓࡁࡀ ࡖࡏࡒࡀࡓࡀ, romanized: parṣupa rba ḏ-ʿqara; pronounced parṣufa in Modern Mandaic; also cognate with Classical Syriac: ܦܪܨܘܦܐ, romanized: prṣupa, lit.

[15] The biblical statements from Exodus and John quoted above were taken to apply not only to God the Father in person, but to all attempts at the depiction of his face.

...the Ancient of Days did sit, whose garment was white as snow, and the hair of his head like the pure wool: his throne was like the fiery flame, and his wheels as burning fire.

Face detail of God from "Creation of the Sun and Moon" by Michelangelo
Andrea Mantegna , Sacrifice of Isaac The Hand of God was the only part of God shown in art for many centuries.
The preface to Blake's Milton poem