JMNT(i)
7 being people having been rooted (or: having been caused to take root) – even ones being constantly and progressively built upon The House (i.e., added to the structure) – within Him; also being folks repeatedly made steadfast and progressively stabilized with good footing within the faith (or: confirmed by the conviction; made secure for trust and loyalty), just as you are taught (or: were instructed), continuously superabounding (being surrounded by more than enough) within it – within gratitude and thanksgiving (or: in an expression of the ease and goodness of grace, as well as the well-being of favor).
8 Keep watching out for and beware that someone will not be the one progressively (or: repeatedly) carrying you off captive (after stripping you of arms and seizing your goods, proceed in kidnapping you as booty or a prey) through the philosophy and empty seduction (or: a deceitful trick having no content) being handed down from and being in line with the tradition of the people (or: corresponding to the thing handed along from humans), down from (or: in line with and corresponding to) the elementary principles (or: rudimentary teachings and fundamental assumptions) of the organized System (the world of culture, religion, government, secular society or economy), and not down from Christ (or: in accord with the sphere of, and in line with, Christ; corresponding to an Anointing),
9 because within Him all the effect of the fullness of the Deity (the result of the filling from the Godship and feminine aspect of the Divine Nature) is repeatedly corporeally (or: bodily, as a whole; embodied; as a body) settling down and progressively taking up permanent residence (or: is continuously dwelling in person),