Merge field syntax problem

[Resource Dragon]

I am trying to insert a mail-merge field and I can't find the correct syntax.

This is what I've got so far and it doesn't work.

    With wrdDoc
.Content.InsertAfter Format(MyDate, "dddd, d MMMM yyyy")
    .Content.InsertParagraphAfter
    .Content.InsertAfter "Dear "
    End With

        ActiveDocument.Fields.Add Range:=Selection.Range, Type:=wdFieldMergeField _
        , Text:=" MERGEFIELD First"

(The code works up to the "End with", it's the next line that is the problem.)

I would be very grateful if someone knows the correct syntax. I've tried some other versions of this, also unsuccessfully.