Correct; however both "bishop" and "priest" are derived from their Greek counterparts. For specifics and Greek references see my #409.
words *Catholic church* are not found in Scripture and your interpretation of *Church of God* as meaning the Roman Catholic church is nothing more than your interpretation
Many words with precise meaning are not found in scripture. True Church of God is Catholic because I recognize her catholicity from the Holy Scripture. However, it is Catholic, not necessarily Roman Catholic; it includes the Orthodox and a variety of Catholic Churches with rites other than Roman.
Spoken like a True Scotsman...