Well according to Exodus 33:20 the Lord said to Moses:
And he said, "Thou canst not see my face: for there shall no man see me, and live."
As to Abraham "eating" with "El" see Genesis 18:2
Abraham looked up and saw three men standing nearby. When he saw them, he hurried from the entrance of his tent to meet them and bowed low to the ground.
In the Hindu scriptures such as the Bhagavad Gita in Edwin Arnold's translation we have:
Whoso hath known Me, Lord of sage and singer,
Ancient of days; of all the Three Worlds Stay,
Boundless,- but unto every atom Bringer
Of that which quickens it: whoso, I say,
Hath known My form, which passeth mortal knowing;
Seen my effulgence- which no eye hath seen-
Than the sun's burning gold more brightly glowing,
Dispersing darkness,- unto him hath been
~ Bhagavad Gita (Edwin Arnold tr)
You see the reference to "Ancient of days"... now consider a verse in the Book of Daniel:
7:9 I beheld till the thrones were cast down, and 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.
7:10 A fiery stream issued and came forth from before him: thousand thousands ministered unto him, and ten thousand times ten thousand stood before him: the judgment was set, and the books were opened.
Now note "His wheels as burning fire" and read the following..
"Having cut through the darkness, which consists of ignorance, it approaches that which is not covered by darkness. Then having cut through that which was covered (the personal soul), he saw Brahman, flashing like a wheel on fire, bright like the sun, vigorous, beyond all darkness, that which shines forth in yonder sun, in the moon, in the fire, in the lightning."
(Upanishads vol. 2, Maitrayana-Brahmaya-Upanishad)
They are in substance in my view the same.