The Estuary of Theology 11 The Work of Man (The Serpent) (Modified in Apr. 2020) The last discussions on Christian communities have led us to the conclusion that “my church” (cf. Matthew 16:18), which Jesus talked about, does not yet publicly appear. This fact may be a negative factor in answering the question that we asked in The Estuary of Theology issue 1 , “Why can’t Christians put an end to the ‘work of man’?” and to put an end to the “work of man.” So, from this issue on, I would like to approach the origin of the “work of man” itself and to discuss aiming for the understanding of its mechanism so that I can clarify the connection between the fact that “my church” does not yet publicly appear and the reason why Christians cannot put an end to the “work of man.” We can understand that living things had the faculty of storing things that they experienced through their five senses, namely the five-sense data, in their memory from the fact that God had arranged food for them (cf