In Germany last week, Rev. Martin Niemöller began his second year in Sachsenhausen concentration camp, where he is confined for refusing to cut his faith to Nazi patterns. In the U. S., The Federal Council of Churches asked its constituents to devote attention to Pastor Niemöller's anniversary. In the Union Church of Bay Ridge (Brooklyn), Presbyterian Rev. John Paul Jones acceded. As he mounted his pulpit, he was seized and dragged away by two parishioners in brown shirts. Then a painted prison set labeled "Sachsenhausen" was stood before the pulpit. Mr. Jones appeared behind it, preached a sermon on Niemoller through its barred window.