The Bible says David is not in heaven

You are not going to like this or tomorrow's video but why do we need a resurrection of the dead if we are already in heaven? (1st Cor 6 v 14 & 15 v 20-23, {summary Ecc 9 v 10} Acts 2 v 34 {summary Heb 11 v 4-11} Heb 11 v 13 {partial}) 082925. Check out my Youtube channel: https://www.youtube.com/@WHISPERINGPINESSTUDIO