Answer:
For the most part, the early Christians proved their faith by how they actually lived. The disciple James urged all Christians: "Become doers of the word, and not hearers only." and "As the body without spirit is dead, so also faith without works is dead." (James 1:22; James 2:26) Jesus added :"...the one DOING (not just hearing or speaking) the will of my father..."will be saved. Matthew 7:21-23