There seems to be a movement (has been for awhile) towards Christian intellectualism. A person reads the Bible and when he determines the Bible is true then he is considered a Christian. Spiritual maturity becomes the acceptance of different Scriptures into a theological construct.
Can a person actually be saved under Christian intellectualism without hearing the voice of God, without God moving in their own heart in a meaningfully but subjective way?
There is a kind of faith that in existential, one accepts the truths as a construct, but not that they are real. It is not that there is an alternative, but to actually believe in God and pray to Him is a step to far. To participate in group activity creates a feeling, maybe from childhood, but the truths and realities are definitely kept at a distance.
These people are culturally believers but are not believers.
It is like an atheist who says they are humanist even though they philisophically a determinist and nihilistic in their outlook.
Jordan Peterson has observed people work best with God and having a meaningful relationship with Him and with others with a purpose.
So to assert facts about Jesus, and yet have a hard heart and have no effects in ones life is a denial of the very words being spoken.
It is up to the individual and what faith means to them, but without living the life of a believer one is not a believer.