Thomas Aquinas, on Ps 18:6

“He hath set his tabernacle in the sun: and he, as a bridegroom coming out of his bride chamber, Hath rejoiced as a giant to run the way:”

“Likewise he explains this similitude when he says, "From the highest heaven." And what is said here can be understood in two ways. In one way, because there are two points according to the astronomers, namely the summit of the heavens, where the sun is when it is at midday, and the opposite point, which is the angle of the earth, where the sun is at midnight. And this is what he says, "His going forth is from the end of heaven," according to those who begin the day from midnight, "and his circuit even to the end thereof," with respect to the angle of heaven where it is at midday. But if it is referred to one high point, there is one point where the sun is at midday. And this is what he says, according to the astronomers who count more days from midday; as if to say: from the meridian point is his return, namely of the sun, to that same place: Eccl. 1: "The sun rises and sets, and returns to its place." His effect is manifested when he says, "And there is no one that can hide himself from his heat"; as if to say, the sun at its meridian so scorches the earth and is so hot that in some lands a man can scarcely endure: Eccl. 43: "At noon it scorches the earth, and who can withstand its burning heat?"”

Imported from an open dataset — not yet checked against the printed edition.