From the early Church Fathers to now.
“Seeing then that all these things are to be dissolved, what manner of people ought you to be in holy conversation and godliness?”
“As you wait for the end of all things, you must live holy lives according to the three laws—the Old Testament, the New Testament and the law of nature—and you must keep faith in the Trinity, which is the law of godliness.”
“For all the things which exist here in appearance pass away and are dissolved, according to the teaching of the Book; and all things which are promised and are about to come into being for the true believers, abide for ever, and they neither pass away nor are destroyed. Believe not then with that faith which is in thee in what passeth away, and deem it not an abiding thing, but thou shalt make use of faith in its fitting order, and shalt believe by it in spiritual things.”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.