Neither person of the Trinity, Father, Son, or Holy Spirit, can speak Himself out of existence. The nature of God is that He is triune. This trinity cannot be divided, increased, reduced, or changed – otherwise, it would not be God. Furthermore, God is unchangeable. Malachi 3:6, “For I, the LORD, do not change; therefore you, O sons of Jacob, are not consumed.” So, if any person of the Trinity would speak Himself out of existence, that would change God. But, according to the Scriptures, that is impossible.
God cannot contradict Himself because He is holy (Isaiah 6:3; 1 Pet. 1:16), perfect (Matt. 5:48), all-knowing (1 John 3:20), true (Psalm 117:2; Titus 1:2; John 14:6), unchangeable (Mal. 3:6; James 1:17), and eternal (Psalm 90:2; 1 Tim. 1:17). In all of this, God is eternally what He has always been and always will be. We know this because He reveals Himself to us in the Scriptures.
Divine Simplicity and Perichoresis
Two doctrines in Christian theology deal with God’s nature and are worth examining here: divine simplicity and perichoresis.
Divine simplicity is the teaching that God is, by nature, one simple thing. The one simple thing is triune. We call this divine simplicity. It means that God is not comprised of parts that can be separated, changed, or removed. So divine simplicity means that God is what He is – without division. Therefore, for one of the persons of the Trinity to speak Himself out of existence would be to destroy divine simplicity. It would mean destroying God. This is impossible because God is eternal Psalm 90:2; 1 Tim. 1:17), and unchangeable (Mal. 3:6; James 1:17).
Perichoresis is the Christian theological doctrine that each member of the Trinity fully and completely indwells the other two. This deals with the essence of God. So again, for one of the persons of the Trinity to speak Himself out of existence would be to destroy the perichoretic relationship, which would mean that God was no longer God. again, this is just not possible. So, God cannot change and stop being triune. No one person of the Trinity can speak Himself out of existence.
