Jump To ECM Entry Online Commentary Introduction
GC: A wide range of witnesses with A as first potential ancestor support variant a. However, quite a few witnesses of a have their first potential ancestor in the b attestation.
TP: τινες makes the phrase easier to read by providing a subject immediately after the verb and particle. On the other hand, it may have looked inadequate to count Barnabas and Saul among “some prophets and teachers”. This is probably the reason for occasional omission of τινες. 
