This idea of God and redemption has turned the entire theology from something spiritual into something earthly of the lowest kind. This is because mere earthly characteristics have been attributed to God. Yet everything about the church hinges on its concept of God and its view of redemption (which is the same as its view of salvation). The concept of God and redemption is like a head: every part of the body is connected to it. When the concept is spiritual, everything about the church becomes spiritual; when it is earthly, everything about the church becomes earthly. Because the church’s concept of God and redemption became merely earthly (meaning that it was down on the level of our bodies and senses), all the dogmatic ideas expressed since then by the church’s heads and members have been merely earthly. Further ideas that hatch from these ideas will inevitably be false, because our earthly self constantly opposes our spiritual self; our earthly self sees spiritual things as phantoms and apparitions in the air.
This materialistic idea of redemption and of God has allowed thieves and robbers, so to speak (John 10:1, 8, 9), to take over the roads that lead in the direction of heaven and the Lord God the Savior. The main doors have been torn off the churches and now dragons, screech owls, wild beasts of the desert, and jackals have come in and are singing together out of tune.
This idea of redemption and God has been injected into the modern-day belief about prayer, as we know. We are supposed to ask God the Father to forgive our offenses for the sake of the cross and his Son’s blood; we are supposed to ask God the Son to pray and intercede for us; and we are supposed to ask God the Holy Spirit to justify us and sanctify us. Is this any different from praying to three gods, one after the other? Under this system, what differentiates divine governance from an aristocratic or hierarchical government? Or even the triumvirate that once occurred in Rome? Instead of a “triumvirate,” this should be called a “triumpersonate.”
Under this belief, it would be easy for the Devil to “divide and conquer,” as the saying goes—that is, to cause a division of minds and incite rebel movements, now against one god, now against another (as people have been doing since the time of Arius up to the present). The Devil would then be able to dethrone the Lord God the Savior, who has all power in heaven and on earth (Matthew 28:18), put some puppet of his own there, and either redirect worship to the puppet or reduce the amount of worship to both.
from True Christianity, Volume 1, Section 133