Jesus left us nothing in writing; everything that we know of his teaching and deeds is contained in the writings of his disciples. Especially where his teaching is concerned, not only the evangelists among his disciples, but the apostles as well undertook to present their master's teaching. However, I find great cause to separate completely what the apostles say in their own writings from that which Jesus himself actually said and taught, for the apostles were themselves teachers and consequently present their own views.