What is going to take place in this chapter is a reinstatement of the covenant broken by Israel. The shattered tablets, which once testified to the reality of the covenant between Elohim and Israel, were to be reproduced.
They did not look upon Him, but saw a vision of Him. Therefore, there is no description given of Him. They only described what was beneath Him as being a pavement of Sapphire.
Elohim did not stretch His Hand out against them, for it would have meant certain death. Instead He allowed them to stay and eat and drink. A feast is the way a covenant is often sealed (Gen. 26: 28-30, 31:52-54).
Yeshua gave the New Covenant at His last Passover Feast (Matt. 26:26-28). We know that the New Covenant will not be totally consummated until He returns. At that time, we will be made whole and will be totally spotless and blameless before Him. Then we will feast with Him again (Matt. 26:29). This will be the Marriage Supper of the Lamb (Rev. 19:7-9). Just like the Mosaic covenant, it will be on the mountain and we will feast with Him.