{Timothy and Erastus} (Timotheon kai Eraston). Paul had
sent Timothy to Corinth ( 1Co 4:17 ) and had requested kindly
treatment of this young minister in his difficult task of
placating the divided church ( 1Co 16:10-11 ) that he might
return to Paul as he evidently had before Paul leaves Ephesus. He
then despatched Titus to Corinth to finish what Timothy had not
quite succeeded in doing with instructions to meet him in Troas.
Now Timothy and Erastus (cf.  Ro 16:23  2Ti 4:20 ) go on to
Macedonia to prepare the way for Paul who will come on later. {He
himself stayed in Asia for a while} (autos epeschen chronon eis
t(886e) Asian). Literally, He himself had additional time in Asia.
Second aorist active indicative of epech(935c), old and common
idiom, only here in the N.T. in this sense and the verb only in
Luke and Paul. The reason for Paul's delay is given by him in
 1Co 16:8f. , the great door wide open in Ephesus. Here again
Luke and Paul supplement each other. Pentecost came towards the
end of May and May was the month of the festival of Artemis
(Diana) when great multitudes would come to Ephesus. But he did
not remain till Pentecost as both Luke and Paul make plain.