(RNS) — When the Rev. Kim Sue Jackson, a 41-year-old Episcopal priest and Georgia state senator, started browsing Facebook for breastmilk donors in the Atlanta area, she didn’t think religion would play much of a role in the effort.  Over nine months, she drove through the state to pick up coolers full of breastmilk from mothers she met on the internet, to feed to her son, Khalil. Sometimes, the families giving away their excess breastmilk spoke about their gesture as an act of faith, she said. One of the first openly gay priests of color in the Episcopal Diocese of Atlanta, Jackson’s search led her to cross paths with mothers and other Christians whose lifestyles and theologies differ from hers. She recalled picking up milk from families who homeschooled their children, viewed raising large families as their faith mission and whose mothers stayed home to tend to their families.…