Rename column headers in power query advanced editor

I' ve two tables in my editor. One contains data and the other contains translations for the column header.

#"Table1"

|active|activationName|descriptiveText|

| 1      |  Sample            | Is a sample.    |

| 2      | Exampl2           | This another   |

#"Table2"

| dbColumnName | label|

| descriptiveText| Description|

|activationName| Name of Activation|

|active                | Activated|

Now I want to translate the column header of the first column with the names of the second table using power query advanced editor. I found an example the forum to remove "_" in the header table name :

#"Result" = Table.RenameColumns(#"Table1", Table.ToRows(Table.AddColumn(Table.FromList(Table.ColumnNames(#"Table1")), "New Column Name", each Text.Replace ( [Column1] , {"Column1.dbColumnName"} , {"Column1.label"} ))))

Therefore, I tried to edit the request in the way that column dbColumnName shall be found and replaced with Column1.label.

But that doesn't work out. How can I do this?