There's a jworg video ( I think 2015) where one of the shepherds to whom the angels announced Jesus birth, becomes the narrator for the whole two part video - essentially the story of Jesus life and ministry. In it he talks about his doubts that Jesus is the messiah, despite seeing the angels with his own eyes as a young Shephard boy. On two occasions he talks about how you can know the truth or whether Christianity is the true faith. The first time he talks about how he knew Jesus is the Christ...the truth. The second time he talks about how he can know Jehovahs Witnesses are the truth.
Just like you bible quote example they sneakily slip it in as though a first century shepjhard would know what Jehovahs Witnesses are, let alone that they are the one true faith. Subliminal messages.