2 Timothy 4:9 - Albert Barnes' Notes on the Bible

Do thy diligence to come shortly unto me - As soon as possible. Timothy had been Paul’s traveling companion, and was his intimate friend. The apostle was now nearly forsaken, and was about to pass through severe trials. It is not certainly known for what purpose he wished him to come to him, but perhaps he desired to give him some parting counsels; perhaps he wished him to be near him when he died. It is evident from this that he did not regard him as the prelatical “bishop of the church of the Ephesians,” or consider that he was so confined to that place in his labors, that he was not also to go to other places if he was called in the providence of God. It is probable that Timothy would obey such a summons, and there is no reason to believe that he ever returned to Ephseus.