Carried up into heaven - Ανεφερετο - into that heaven from which he had descended, John 1:18; John 3:13. This was forty days after his resurrection, Acts 1:3, during which time he had given the most convincing proofs of that resurrection, not only to the apostles, but to many others - to upwards of five hundred at one time, 1-Corinthians 15:6.
As in his life they had seen the way to the kingdom, and in his death the price of the kingdom, so in his ascension they had the fullest proof of the immortality of the soul, the resurrection of the human body, and of his continual intercession at the right hand of God.
There are some remarkable circumstances relative to this ascension mentioned in Acts 1:4-12.

And it came to pass, while he blessed them,.... Just as he was finishing the words, by which he expressed the blessings he bestowed on them:
he was parted from them; as Elijah was from Elisha: their spiritual and mystical union by him remained, which is indissoluble; nor was his gracious presence from them withdrawn; nor was this parting in anger and resentment, as he sometimes does withdraw from his people, on account of their sinful conduct, in a little wrath, for a moment, resenting their unbecoming carriage; but this parting was while he was blessing them, and was only in body; his heart was still with them; it was a withdrawing of his corporeal presence from them, and that but for a while; he will come again a second time from heaven, from whence the saints expect him, and then they will meet, and never part more: and carried up into heaven; by his divine power, as God, by virtue of which he ascended himself, he went up gradually, till he became invisible to his disciples; or through the agility of his human body; for the bodies of the saints, when raised, will be like the angels, swift and nimble, and capable of moving from place to place, and of ascending and descending; and much more the glorious body of Christ, according to which, theirs will be conformed; though neither of these deny the use of means, that might be made, as of a cloud, and of angels; for a cloud received him out of the sight of the apostles; and there were the twenty thousand chariots of God, even thousands of angels, which attended him, when he ascended on high, and in which he may be properly said to be carried up into heaven, Acts 1:9 where he was received with a welcome, by his Father, by all the glorified saints, and holy angels, and where he is placed in human nature, at the right hand of God; is crowned with glory, and honour, and exalted above all creatures, human or angelic; and where he will remain until the time of the restitution of all things, and then he will descend to judge the quick and dead. The Arabic and Ethiopic Versions read both these clauses actively, "he parted himself", or "he departed from them, and went up into heaven"; and so reads the Syriac version the last clause.

while he blessed . . . parted, &c.--Sweet intimation! Incarnate Love, Crucified Love, Risen Love, now on the wing for heaven, waiting only those odorous gales which were to waft Him to the skies, goes away in benedictions, that in the character of Glorified, Enthroned Love, He might continue His benedictions, but in yet higher form, until He come again! And oh, if angels were so transported at His birth into this scene of tears and death, what must have been their ecstasy as they welcomed and attended Him "far above all heavens" into the presence-chamber, and conducted Him to the right hand of the Majesty on High! Thou hast an everlasting right, O my Saviour, to that august place. The brightness of the Father's glory, enshrined in our nature, hath won it well; for He poured out His soul unto death, and led captivity captive, receiving gifts for men, yea for the rebellious, that the Lord God might dwell among them. Thou art the King of glory, O Christ. Lift up your heads, O ye gates, be lifted up, ye everlasting doors, that the King of glory may come in! Even so wilt Thou change these vile bodies of ours, that they may be like unto Thine own glorious body; and then with gladness and rejoicing shall they be brought, they shall enter into the King's palace!

And while he was blessing them, he was parted from them - It was much more proper that our Lord should ascend into heaven, than that he should rise from the dead, in the sight of the apostles. For his resurrection was proved when they saw him alive after his passion: but they could not see him in heaven while they continued on earth.