Concatenation across many to many join

Thanks in advance for any help.

I have three tables like this:

Table 1
ID(autonumber) Field 1 Field 2 Field 3

Table 2 - many to many join
[Table 1 ID] [Table 3 ID]

Table 3
ID(autonumber) Field 1 Field 2

I would like to create a query/other SQL statement which will produce fields
from Table 1 and then a filed which shows a comma separated series of the
related Field1 in Table 3. So I think it would be like...

(Table1.Field1) (Table1.Field2) (Table3.Field1, Field1, Field 1)

I'm new to coding and have searched for something like this, but I've only
found the ability to concatenate when the values are in the same table. Any
help will be appreciated!