It does not matter if someone believes that the earth is round or flat for being a member of the Body of Christ.

For those that do care about the shape of the earth:

Here are resources that have the view that the earth is not flat, following a science-based approach:

• No, the earth isnt flat by Drew Costen

Here are resources that have the flat earth view:

• Globe Earth Forming the Deception (aliens) by Scott Hicko