JMNT(i)
3 For you see, we ourselves are (exist being) The Circumcision: the people (or: those) continuously rendering sacred service in a spirit of God (or: by God's Breath-effect; to God's Spirit; with God's breath; [some MSS: service to God in spirit; p46 omits "God," so simply: serving in spirit]) and constantly making our boast (being loud-tongued, vaunting and exulting) within, and in union with, Christ Jesus; even folks (or: those) being people having been persuaded and thus continuing to put no confidence within flesh (= having no reliance upon what is physical: e.g., religious works or natural heritage; or: the estranged human nature; [comment: this could be a reference to animal sacrifices]).
4 Even though I myself continue holding (or: having) [grounds for] trust and confidence also within flesh, if any other man is in the habit of thinking (or: is constantly seeming) or presuming to have come to a settled persuasion, thus having confidence within [his] flesh, I to a greater degree (more so; for a better reason; rather more):
5 in circumcision, on [the] eighth day; out of race (from posterity; by birth; as to class or species), of Israel; of Benjamin's tribe; a Hebrew out of the midst of [the] Hebrews (or: = a supreme Hebrew); in accordance to Law, a Pharisee (or: down from custom, a Pharisee);
6 in accordance to zeal, one constantly pressing, pursuing and persecuting the called-out community; in accordance to fairness and equity in the way pointed out in the Law, one coming to be, of myself, without defect (one becoming blameless).
7 But to the contrary, whatever things (or: things which) were being gains (advantages; assets) to, for or in me, these things I have esteemed and now consider (or: regard) as a loss (a penalty; a forfeit; disadvantage; a bad bargain; a detriment) because of the Christ (or: on account of the Anointed One [= the Messiah]).