the church is the pillar and ground of truth. How do you reconcile this with your view that the Church is composed of many from different denominations
I didn't write that the Church is composed of many from different denominations
; I wrote that it consists of people
who are united to Christ by the Holy Spirit, and that these people are found in many denominations. It is the people that constitute the church, not denominations.
In re your other about Baptists and Orthodox assigning different meanings to the term saved
, you are correct, but the discrepancy lies in this - that the Chistian's salvation consists of its beginning (when he is born again), its continuation (as we are sanctified), and it end (when we will be 'just men made perfect', as Hebrews has it). We Evangelicals tend to use the word "saved" to refer to the first, whilst Orthodox tend to use it of the entire process. One could say, with truth, "I have been saved from the guilt of sin; I am being saved from the power of sin; I shall be saved from the presence of sin." All three are true, but in common, and admittedly rather inaccurate but commonly understood parlance, we Baptists tend to use the word with the first meaning: but of course we believe the others too, but might more probably use the words "sanctified" and "glorified".
I hope this helps.