JMNT(i)
7 [So] be constantly enduring (or: You folks are continuing to remain supportively under) with a view to education, discipline and child-training: as to sons is God Himself continuously bringing [it] to you. For who is a son (or: what son is there) whom a father is not disciplining, educating and training?
8 But if you are without education, discipline and training, of which all have become partakers (common participants; partners), accordingly you are really illegitimates (= rabbinic term mamzer: child of a prohibited marriage [Lev. 18], or of uncertain fatherhood) and not sons.
9 Then again, we indeed used to have instructors (educators; teachers of boys; discipliners) – the fathers of our flesh (= human parents) – and we continued being repeatedly turned among [them] (or: turned within and caused to reflect; = we listened to them and obeyed). To a much greater extent, shall we not be continually placed under and humbly arranged and aligned by the Father of the spirits (or: the Progenitor of breath-effects and Mentor of attitudes)? And then we shall proceed living (or: progressively live)!
10 You see, on the one hand, they were instructing (educating; disciplining; child-training) and continued thus toward a few days (= for a little while), according to and in line with that [which] normally was seeming [right] to them (or: was being in line with the opinion [held] by them). Yet on the other hand, upon this [instruction, arrangement and alignment] He is continuously bringing [things; situations] together (progressively collecting unto profitability) – unto this: to mutually partake of His set-apartness (or: to take by the hands together, share and mutually receive from the holiness and sacredness which is Him).