Galatians 2:1

διὰ δεκατ. ἐτῶν. Greek usage in calculating intervals of time between two events reckons two years for the two broken years at the beginning and end of the period. Some critics, notably Lightfoot, calculate this period from the meeting with Peter mentioned in Galatians 1:18 : but this attaches far too much importance to that interview. It is only mentioned and its date loosely indicated in order to show that three full years passed before they had any intercourse. The dominant note of time throughout in the mind of the author is surely the conversion: and the object of specifying a period of time here, as in Galatians 1:18, is to show how many years of Christian life had passed before the event. Τίτον. The names of the Christians who accompanied Paul and Barnabas are not given in Acts 15:2. It appears that Titus, a Greek Christian, one of Paul's own children in Christ, was among them, and that Paul was responsible for his selection. His choice of a Greek for his companion evinces the determined spirit with which he started on his mission.