Raven and Taylor taught that the expression 'son of God' refers only to the One who came in flesh after his incarnation and not before. Thus a number departed at the time and emphasised the 'eternal Sonship of Jesus Christ'.
This issue had affected other movements previously, and J C Philpot, of the Baptist movement, wrote, in 1860, a book titled 'The True, Proper and Eternal Sonship of the Lord Jesus Christ'.
Today, some appear to be Exclusive Brethren and are headed by an Australian man, (and administered from Australia) calling themselves 'Plymouth Brethren' but their teaching contradicts the Leader of that, original, movement (J N Darby) who is quoted as saying :
If I hold the Son only as son from incarnation - I lose everything.
Question One :
I am interested to know if those who hold that Jesus Christ is 'son of God only by incarnation' use the term 'The Trinity'.
If they do, it is important to realise that they hold that there are three gods whose relationship (in deity) is unknown and unrevealed, who accepted 'offices' (their word, not mine) which offices are labelled "father", "son" and "holy spirit".
This is not what others believe who also use the term 'The Trinity' which, to them, means eternal relationships which truly reveal Person within Deity and that the names 'Father' 'Son' and 'Holy Spirit' are real revelations of Person, not of 'assumed office'.
Question Two :
And if it is the case that the Taylor Brethren refer to 'The Trinity' does this term need to be further qualified for the sake of clarity ?