I always wondered what the WTS phrase "present truth" meant? The WTS seems to imply that somehow "truth" changes, there must be a different past truth and a different future truth.
WT Song 91
And keep in step with present truth,
https://jwfacts.com/watchtower/directed-by-holy-spirit.php
In 1922, Watchtower released an article titled "Divinely-Given Chronological Parallelisms." Is the reader to believe the interpretation in the Watchtower was divinely-given, or just the Bible verses it was based on? Watchtower can say they never claimed their interpretation was divinely-given, yet that is very much the conclusion a reader would likely draw, after reading the article.
"It has been shown in a preceding article that the parallel dates of present-truth chronology are proof of divine foreknowledge, and that they demonstrate that the system is of divine origin. ... So present-truth chronology is not an invention, but a discovery." Watch Tower 1922 Nov 15 p.355