Greetings,
Thanks to the forum's help, I am using the following code to hide specific worksheet columns. However, I am actually needing to delete all the columns that do not equal the vArray range.
Sub rfd_Column_Hide()
Dim vArray, vRng
vArray = ThisWorkbook.Worksheets("SetUp_Page").Range("AU12:AU27").Value
    Columns("A:CK").EntireColumn.Hidden = True
For Each vRng In vArray
    Range(vRng).EntireColumn.Hidden = False
Next vRng
End Sub