Here’s a good quote from Cornelius Plantiga regarding outreach.
Claiming allegiance to the Christ who speaks in active imperatives (Go! Tell! Witness! Declare! Proclaim!), we Christians nonetheless prefer to keep the bread of life in our own cupboard and to speak of it only to those who already have it. Do we subconsciously suppose that in such inbred silence we can keep our dignity, and unbelievers can go to hell where they belong?