Matthew Henry’s Whole Bible Commentary:
It was certainly a very extraordinary honour done him: in some sense he was caught up into the third heaven, the heaven of the blessed, above the aerial heaven, in which the fowls fly, above the starry heaven, which is adorned with those glorious orbs: it was into the third heaven, where God most eminently manifests his glory.
Scofield Reference Notes:
First heaven, of clouds; second, of stars; third, God’s abode.
Wesley’s Notes:
The third heaven - Where God is; far above the aerial and the starry heaven.
Vincent’s Word Studies:
The conception of seven heavens was familiar to the Jews; but according to some of the Rabbins there were two heavens - the visible clouds and the sky; in which case the third heaven would be the invisible region beyond the sky.
Clarke’s Commentary on the Bible:
In the sacred writings three heavens only are mentioned. The first is the atmosphere, what appears to be intended by רקיע rekia, the firmament or expansion, Genesis 1:6. The second, the starry heaven; where are the sun, moon, planets, and stars; but these two are often expressed under the one term שמים shamayim, the two heavens, or expansions, and in Genesis 1:17, they appear to be both expressed by רקיע השמים rekia hashshamayim, the firmament of heaven. And, thirdly, the place of the blessed, or the throne of the Divine glory, probably expressed by the words שמי השמים shemei hashshamayim, the heavens of heavens.
Gill’s Exposition of the Entire Bible:
This is called the “third” heaven, in respect to the airy and starry heavens. The apostle refers to a distinction among the Jews of , “the supreme heaven, the middle heaven, and the lower heaven”
Barnes’ Notes on the Bible:
To the third heaven - The Jews sometimes speak of seven heavens, and Muhammed has borrowed this idea from the Jews. But the Bible speaks of but three heavens, and among the Jews in the apostolic ages also the heavens were divided into three:
(1) The aerial, including the clouds and the atmosphere, the heavens above us, until we come to the stars.
(2) the starry heavens, the heavens in which the sun, moon, and stars appear to be situated.
(3) the heavens beyond the stars. That heaven was supposed to be the residence of God, of angels, and of holy spirits.