He is supported in this action by Agricola, a fellow Mithraist and a warlord of Gwent. However, Lancelot avoids the humiliation of rejection into the cult by publicly converting to Christianity and being baptised by Bishop Sansum, which ensures Lancelot's popularity with the Christians.
Agricola, who is also a fellow Mithraist and a warlord from Gwent, supports him in this action. To avoid the disgrace of joining the cult, Lancelot publicly converts to Christianity and is baptized by Bishop Sansum, thereby maintaining his popularity among Christians.