You should come to my house to eat. Should there be a para before to eat and if not, why?

When I read this, I instantly said Deberías venir a mi casa para comer, but it’s actually a comer. I’m starting to get the hang of para in español with context, but this one confuses me, because the person is asking someone to come over IN ORDER to have a meal. Can someone explain, I’d appreciate it.

submitted by /u/theskaterboy999
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