Let your home be open to all (Ethics of the Father 1:5).
I have traveled to many communities to lecture on various subjects. I have also attended other guest speakers' lectures. Invariably, after the lecture, the speaker is invited to a home where a small group of people gather for an informal chat, while hors d'oeuvres are served.
It has been very distressing to me that even when my audience appears to receive my talk well, no one may invite me to a post-lecture gathering. Why? I keep kosher, many of these people do not, and they find it awkward that the guest would not partake of their refreshments.
This baffles me. If my lecture was not well received, I could understand people's reluctance to invite me. But when the response is virtually ecstatic, and I receive immediate requests for repeat performances, why, then, am I shunned? If I were a person of any other faith or nationality, I would be welcomed in everyone's home. Why are the doors of my own people closed to me? The abundance of kosher foods available no longer makes keeping kosher an inconvenience.
Observant Jews adhere to kosher laws as a matter of conviction. Even if someone is not of that mindset, he or she can at least maintain a home where every Jew can be welcomed (or at least have a cup of coffee!).
So many doors are closed to Jews. We should not be closing our doors to our own.