How long will Satan have access to the throne room of heaven?
Satan's access to the throne room of heaven lasts until the midpoint of the tribulation. At that time he is cast out for the last time. Until then, he accuses believers before God the Father, but afterward that access ends permanently.
Les teaches that Satan has had access to the very throne room of heaven, where he accuses believers before God the Father every time they sin. That access will continue until the midpoint of the tribulation, but then Satan will be cast out for the last time. Les explains that believers have an Advocate, Jesus Christ the righteous, who defends them, saying they are under the blood and purchased by Him. This Advocate is also the propitiation for our sins and for the sins of the whole world, as John writes in 1 John 2:1-2.