On April 4, 2009, an unidentified man saved the life of a 27-year-old woman by pulling her from a burning home in Jacksonville, Florida. As reported by The Florida Times-Union, this man was driving by, stopped to rescue the woman, and drove away as fire and rescue arrived on the scene. His identity was never determined.
23 For as I passed along and observed the objects of your worship, I found also an altar with this inscription: ‘To the unknown god.’ What therefore you worship as unknown, this I proclaim to you. 24 The God who made the world and everything in it, being Lord of heaven and earth, does not live in temples made by man, 25 nor is he served by human hands, as though he needed anything, since he himself gives to all mankind life and breath and everything.
Acts 17:23-25, ESV
As Christians, we have a direct relationship with the Lord of everything. We know God. We know the identity of the one who created us, the one who saves us and guides us. There are many today, just like the Athenians we see in Acts 17, who have the idea of an unknown god with an unidentifiable existence. Like Paul, we are called to proclaim the gospel, so that everyone who hears has an opportunity to know the one true God.