A worshipper holds a copy of the Bible while attending a church service ahead of Christmas in Hong Kong on December 23, 2018, during which several members of the congregation wore black in support of underground churches in mainland China. - This year, underground churches in China, especially larger establishments like the Early Rain Covenant, which has at least 500 church members, have faced increasing pressure. (Photo by Philip FONG / AFP) (Photo credit should read PHILIP FONG/AFP/Getty Images)
