Error "cannot apply field access to type Text" when using Text.Combine string in SQL as parameter

Question

I am trying to get a list of orders from an Excel table, convert it to a comma delimited list, and use the value in an 'IN' clause of a SQL 'WHERE' statement.

The result of the list looks good and is of the expected type. When I try to use it in the SQL, I get the error

Expression.Error: We cannot apply field access to the type Text. Details: Value='1','2','3','4','5','6' Key=AddedApostrophe

I thought I understood the error and made sure the column is of type Text, but I still can't get past the error. What am I missing?

Here is the M code for reference:

let
Source = WorkOrders,
#"Added Custom" = Table.AddColumn(Source, "AddedApostrophe", each "'" & [Work Orders] & "'"),
#"Changed Type" = Table.TransformColumnTypes(#"Added Custom",{{"AddedApostrophe", type text}}),
WOList = Text.Combine(#"Changed Type"[AddedApostrophe],",") in WOList

Then

let
WOList = Text.Combine(#"WorkOrders (2)"[AddedApostrophe],","),
sQuery = "select wadoco from proddta.F4801 where wadoco in (" & WOList & ")",
Source = Sql.Database("servername", "DBname", [Query= sQuery]) in Source