This too was a sure sign that He went up to Heaven. Not fire, as in the case of Elijah, nor fiery chariot, but a cloud received Him; which was a symbol of Heaven, as the Prophet says; Who makes the clouds His chariot Psalm 104:3.
And when He had thus shown them that there is truly a resurrection of the flesh, wishing to show them this also, that it is not impossible for flesh to ascend into heaven (as He had said that our dwelling-place is in heaven), "He was taken up into heaven while they beheld"
And to baptize them into His death by the authority of the God of the universe, who is His Father, and by the testimony of the Spirit, who is His Comforter,-we teach you all these things which He appointed us by His constitutions, before "He was received up in our sight into heaven"
To ascend into heaven is clearly an attribute of Christ as man, who in their sight was taken. That cloud afforded no support as a vehicle to the ascending Christ: but it appeared as a sign of the Godhead, just as God's glory appeared to Israel in a cloud over the Tabernacle (Ex. 40:32; Num. 9:15).