Galatians 2:3

neither Titus Better, not even Titus, who, as Paul's colleague, might have thus had more ready access to the Jews.

being a Greek unlike Timothy, Acts 16:1-3.

was compelled Scholefield renders, "was under any necessity to be circumcised, but only because, &c." i.e. there was no necessity for his being circumcised, except that pretended necessity which was set up by these false brethren. (Hints for an improved Translation of the N. T.)

"Paul might have suffered Titus to be circumcised; but because he saw they would compel him thereunto, he would not. For if they had prevailed therein, by-and-by they would have gathered that it had been necessary to justification, and so through this sufferance would have triumphed against Paul." Luther.