Open and Affirming (ONA) is an official designation of congregations and other settings within the United Church of Christ (UCC) denomination affirming the full inclusion of gays, lesbians, bisexuals and transgender persons (LGBT)
The Open and Affirming program is administered by the UCC Coalition for LGBT Concerns, which supports congregations and other church settings as they consider adoption of an ONA covenant and maintains the official list of ONA settings. The Coalition encourages UCC congregations, campus ministries, seminaries, regional bodies and other communities to engage their members in serious study of sexual orientation and gender identity and to declare publicly their full welcome and inclusion of LGBT people. With more than 1,000 congregations, the UCC's ONA program is the largest of several LGBT-welcoming church movements in U.S. and Canadian churches.

I think it is esp important for all the kids at all ages that it is more than just openess but affirming