Hi, I am a protestant and and my family are jehovahs witnesses and last service they said the immortal soul doctrine is a lie the Catholic Church and Satan made up. They quoted Ecc 9:5 where it says the dead know nothing but I’m not a Jw but they made a good point…help? I ask catholics because they really dislike the Catholic Church and claim Satan is behind it…
There are many articles concerning the Jehovah’s Witnesses available here on the Catholic Answers website which you can find by using the search feature. Here is a relevant portion of one of them:
A mistake made by JWs is their denial of the immortality of the soul. The Bible mentions the soul approximately 200 times, and it can be seen to have very different meanings according to the context of each passage. The soul is immortal according to Scripture.
Perhaps the strongest contradiction of the WTS doctrine is seen in Christ’s descent to Hades. In 1 Peter 3:19, the apostle tells his audience how Jesus “preached to the spirits in prison.” If the dead were aware of nothing, then his preaching would have been futile.
In the OT, the prophet Isaiah speaks of the condition of the dead,
"Sheol underneath has become agitated at you in order to meet you on coming in . . . all of them speak up and say. . . . Those seeing you will gaze even at you, saying . . . " (Is. 14:9-11).
These verses indicate clearly that the dead are conscious, and the NT tells the same story. To be absent from the body is not to be unconscious, but rather it enables one to be home with the Lord, according to Paul (2 Cor. 5:8, Phil. 1:23).
The body is just a tent, or tabernacle that does not last (2 Cor. 5:1-4; 2 Pet. 1:13), while man cannot kill the soul (Matt. 10:28).
In fact, the souls live past the death of the bodies, since John "saw . . . the souls of those slaughtered . . . and they cried with a loud voice, saying . . . and they were told . . . " (Rev. 6:9-11).
Because the soul does not die with the flesh, those in heaven are able to offer our prayers to God (Rev. 5:8), and live in happiness (Rev. 14:13).