Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil" (Isaiah 1:16)
In post-biblical times many who were filled and possessed by the Spirit were by the limitations of their literary gifts prevented from telling us much about Him. They had no gifts for self-analysis but lived from within in uncritical simplicity.
To them the Holy Spirit was One to be loved and fellowshiped the same as the Lord Jesus Himself. They would have been lost completely in any metaphysical discussion of the nature of the Spirit, but they had no trouble in claiming the power of the Spirit for holy living and fruitful service.
This is as it should be.
Personal experience must always be first in real life ... Knowledge by acquaintance is always better than mere knowledge by description, and the first does not presuppose the second nor require it.
Happy is the man who will not allow himself to be diverted and distracted, but having emptied and cleansed his heart, will stand waiting ... for Christ to descend, fill and ever remain as the glorious indweller of the soul.
~A. W. Tozer~