Jesus has at some point in past before time been conceived by God when God who is from everlasting to everlasting became Father - and His children are always His children once He calls then sons and daughters. Trinity disputes this. The Spirit we do not know about in this sense we know eternal past concerning God and Jesus. He cannot be God or if Trinity doctrine is correct then the teaching of Jesus would be made a nonsense that blasphemy against the Holy Spirit is unforgiveable whereas blasphemy against God is forgiveable. If Trinity doctrine is correct that the Spirit IS God then Jesus saying that the blasphemy against God is forgiveable but blasphemy against the Spirit is unforgiveable becomes nonsensicle.
