What is One Life? For us, it is the belief that the best evangelism is done one-on-one. Every Christ follower should have a non-believing friend, family member, or co-worker.. We strive to be intentional about walking with them in their daily life. By simply hanging out with, praying for, inviting them to dinner, to church, to family parties etc. It's our hope that our relationship with them will lead them along the path of getting to know Jesus themselves!