Hans gave a solution to this a while ago: 
https://mailman.ntg.nl/pipermail/ntg-context/2018/090833.html

Wolfgang
> Christoph Reller <mailto:christoph.reller@gmail.com>
> 22. Juni 2018 um 13:52
> Hi,
>
> As mentioned in cld-mkiv.pdf, the entire ConTeXt interface can be 
> called from lua: This is great!
>
> Unfortunately the ConTeXt command \goto is a little problematic 
> because goto is a lua keyword. Therefore, the following leads to a lua 
> error:
>
>     context.goto("text", { "label" })
>
> I guess the only way to call goto from lua is
>
>     context(false, "\\goto{text}[label]")
>
> Am I correct?
>
> Cheers,
>
> Christoph
>
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