A true Christian is a person who has accepted Gods gift of salvation and put their faith in Jesus Christ. This includes accepting Jesus death on the cross as payment for our sins and His resurrection as proof of His power over death........Then Agrippa said to Paul, Do you think that in such a short time you can persuade me to be 'a Christian? (Acts 26:28).
Being Christian is also a walk with Jesus Christ.....However, if you suffer as 'a Christian', do not be ashamed, but praise God that you bear that name (1 Peter 4:16).
So we as Christians are united as 'believers' in the risen Christ....regardless of location.....I say this because Jesus changed location and tactics. Jesus had taught in synagogues, then in the open air. He sat in a boat; large crowds stand by the lake as He taught them many things. Jesus had spoken and acted openly, ...and with that The sower and the soils (13:39)....
The four soils represent four types of people and four types of response to Gods word without Gods word many fall away on the wayside.
Well said.