Thematic Bible: Necessity of, denied by paul

(but neither was Titus, who was with me, being a Greek, compelled to be circumcised;) and it was on account of the false brethren brought in surreptitiously, who came in surreptitiously to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage; to whom we yielded in subjection not even for an hour, that the truth of the glad tidings might remain with you.