Just as the previous verse described the attributes of spiritual maturity, so too, this verse describes the dwelling and structure of spiritual maturity.
The dwellings of this world, whether in the past, whether now, or whether in the future, are only temporary at best.
The dwelling structure of the soul is permanent and eternal.
The habitation of the soul, is the structure which Bible doctrine creates within the soul.
Bible doctrine is the building material for the spiritual construction of the structure of the soul.
Often times we call this our temple, our fortress, our mansion, all of which complete our essence of soul, by means of our learning Bible doctrine.
Bible doctrine learned, completes the structure of our soul, which leads to the most perfect and permanent dwelling place of safety, of security, of happiness, and these last forever.
Without Bible doctrine, you have none of these.
The perfect life can only be attained by learning Bible doctrine on a consistent and daily basis.
Study [by instruction],
to show thyself approved [spiritually mature]
a workman [student]
that need not be ashamed [ignorant],
rightly dividing [learning, understanding, discerning]
the word of truth [Bible doctrine].