Create array from named ranges

I have named ranges with these values in different parts of the workbook:

Named_range_1:
1
2
3

Named_range_2:
4
5
6

Named_range_3:
7
8
9


Im trying to get all of these named ranges into one array like this:

array_1:
1
2
3
4
5
6
7
8
9

I tried to write the code but it will only accept one named range at a time:

Sub test133()
 Dim array_1 As Variant
 
 array_1 = Range("Named_range_1").Value

 Dim i As Long
 
 For i = LBound(array_1, 1) To UBound(array_1, 1)
 Debug.Print array_1(i, 1)
 Next i
 
 
End Sub

How can I load more named ranges into the array?

Thankful for any help!