Priests must also exhibit due prudence in not conducting worship services where significant conflict is likely.
Based on the article, the people were trespassing on state property. The Israeli troops could have shown much greater respect by not dispersing the group until the Mass was completed, which made the situation worse.
By conducting Mass there, a political commentary seemed to be touted by the congregation, which isn’t a good thing to do against the Israelis, secular as they are from a governmental point of view.
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