Direct Answer Based on David Bercot’s teaching, the strongest support is that New Testament writers directly apply “overseer/bishop” language to the same men they call “elders,” while listing only two standing orders of local leaders (bishops/elders and deacons). The main tension he notes is that later writers (e.g., Ignatius) clearly use “bishop” and “presbyters” as separate roles, and Ephesians 4:11 introduces other ministry terms that could sound like additional offices.
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