Humanists may consider themselves secular or religious. Many of us who grew up in a church may miss the spiritual support it provides. In college, I often went to the Unitarian Coffee House, an area for talks, games, and snacks on Friday nights.
When it was time to marry, we called on Reverend Gold from the UU church in Richmond who counseled us and performed the service in the park.
A church, any church, provides spiritual support for moral people seeking to be good and to do good. The camaraderie, the music, the message, all contribute to maintaining a “holy spirit”, that is to say, “feeling good about doing good and being good”.
And it helps to have that support in a world where the wicked often profit at the expense of the rest of us.
But a formal church is not a necessity. We also have the camaraderie of the authors we read, the discussions with like-minded people, and even discussions with people who disagree but help us clarify our faith.
And, yes, it is a matter of faith. All churches that claim to follow God, also declare God to be Good. And it is our faith in Good that sustains us.