Christians claim that the single God exists as three distinct persons: the Father, the Son, and the Holy Spirit. We claim that this belief is false, because several absurdities follow from it. In this article, we will demonstrate one such absurdity. We argue:
- If the persons of the Trinity exist, then they would be either qualities, or beings.
- The persons of the Trinity are neither qualities nor beings.
- Therefore, the persons of the Trinity do not exist.
Premise 1: If the persons of the Trinity exist, then they would be either qualities, or beings
This premise is true, because existent essences either:
- Exist while subsisting within some other essence.
- Exist while not subsisting within some other essence.
The first option is the negation of the second, so they cannot be both false. And the first case describes a quality, while the second case describes a being. As such, it is impossible for that which exists, to be neither a quality nor a being.
Given the above, and since the Christian claims that the persons of the Trinity exist, this means that the persons of the Trinity would have to be either qualities or beings.
Premise 2: The persons of the Trinity are neither qualities nor beings
If the Christian claims: “the persons of the Trinity are qualities of God, that subsist within His being.”
We respond: to propose that the persons of the Trinity are actually qualities of God, conflicts with several fundamental Christian beliefs.
First there would be no reason to limit them to three persons. If the Christian were consistent, he would have treated other qualities (such as Power, Will, and Knowledge) as divine ‘persons’ as well.
Second it is impossible for the qualities of God to separate from Him. Yet the Christian believes that the Son and the Spirit entered the world. So how can he then claim that those persons are qualities?
Third it is impossible for the qualities of God to be attributed with even more qualities. So if the Christian claims that the persons of the Trinity are qualities, then this would entail it being impossible for each of those persons to be attributed with qualities (like Power, Will, and Knowledge).
And if the Christian claims: “the persons of the Trinity are each a divine being, such that each is attributed with all the divine qualities.”
We respond: this is blatant polytheism. In that case, you would be no different than the polytheist who believes in a single family of gods, comprised of a multiplicity of individual deities.
Therefore, the persons of the Trinity do not exist
The two premises are true, so the conclusion necessarily follows. Therefore, the persons of the Trinity do not exist.
 Apart from the absurdity demonstrated in this article, the Trinity is also a false belief for the exact same reason polytheism is so. Two proofs- Burhan Al-Tamayuz, and Burhan Al-Tamanu’– have been offered against polytheism, and those two proofs work just as well against the Trinity.
 If this were possible, then this would make those qualities accidents. And accidents are emergent, as they are other than the being they are attributed to. However, the Christian claims that the persons of the Trinity are beginningless, not emergent.
 If God’s qualities were themselves attributed with qualities, then an infinite number of qualities would exist. And the existence of an infinite number of qualities is impossible. More on this here.