The \vrs marker sets the versification for the module. In your example, if you have \vrs English with ISA 9:1-6 it will show verses 1-6. However, if you change use \vrs Original then it will display the text for verses 2-7.
You may want to consider not showing verse numbers at all (don't include them in the \inc) and just set your headers with the \r field to what you want.