There is a quite good article on this by Kirk MacGregor. It does appear in a conservative evangelical journal, which I’m sure will raise some people’s hackles, but the article is basically giving you a run down of primary sources. Compare this with the earlier work of C. Cadoux The Early Christian Attitude to War, which basically holds the same conclusion.

That conclusion is that before the start of the 4th century, early Christianity was overwhelmingly opposed to violence and military service. No mainstream Christian theologian can be found supporting violence, and incidents of Christians engaged in violence are rare. The situation definitely changes after Constantine. You start to get more justification for Imperial violence.

And the circumstances down in Egypt are just... weird. Large groups of ‘monks’, which seem little more than illiterate religious mobs, who engage in street ruffian violence sometimes at the behest, sometimes against the will, of local religious leaders.