The use of Proverbs 4v18 is a blatant misquoting of Scripture, which is adding to Scripture, an act that is Sinful, as outlined elsewhere in the Bible.
Proverbs 4 is about the Righteous Man who, as he lives his life, sees his Pathway ever clearer, which is true. To apply it in any other way is disingenuous and dishonest in the extreme.
And to imagine the Holy Spirit/Jehovah would reveal anything that was plainly in error is Blasphemy. God cannot Lie !
A lot of their former "understanding" caused death and suffering,in the distant past being against Vaccines for example, as does the still promoted, and similarly false interpretation of Scripture, that is their murderous Blood Doctrine.
They truly are False Prophets and Shameless Charlatans !