How you are known? That’s what a name is... how you are known.
But, of course, that needs to be based on who you are, or you are acting under false pretences. God doesn’t do that — when he makes himself known as YHWH or Jesus, it’s a faithful and true witness to who he is. A name conveys who you are.
How then do you decide a church name? For many, the church has already got one — inherited, or given from the ‘parent’ church. Continuity is valuable — we hold firmly to the tradition handed down to us: and the gospel and the God who gave it are unchanging. On the other hand, we evangelise a changing world where: