user defined parameters in a SQL query in Delphi

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SQL

Delphi

i am trying to create a function that will verify users before allowing them to login. The userID, Password and Name are stored in a data-base (MS Access). The function takes the ID, Password and Name that the user has entered and compares it to that found in the database. However when trying to find the users information through a SQL query the following error occurs: 'Parameter Brent has no default value' Brent is the user name entered by the user by means of selecting it from a drop-down menu (as to avoid spelling errors etc. the Delphi code follows:

function check (Name, ID, Password : string) : string;
var
  myLoop : integer;
  myField : string;
begin
  form1.ADOQuery1.Active := false;
  form1.ADOQuery1.SQL.Text := 'SELECT [employee ID], Password, Name FROM Employees WHERE Name = ' + name;
  form1.ADOQuery1.Active := true;

  {for myLoop := 1 to 3 do
  begin
  myField := form1.DataSource1.DataSet.Fields[myLoop].AsString;
  showmessage(myField);
  unit1.arrEmployee[myLoop] := myField;
  end;

  if (arrEmployee[1] = ID) AND (arrEmployee[2] = Password) AND (arrEmployee[3] = Name) then
  showmessage('all your information is correct') else
  showmessage('your information is not all correct');  }