Exodus 23:15 "And none shall appear before me empty"

When a person is celebrating a special event, such as a birthday, or moving into a new house, or a Bar-Mitzvah, he invites friends and relatives to join him and share his joy.

One of the first things we do when receiving an invitation to a party, is to buy a present for the host. Even if the host is very rich, we still want to give him a present.

We do not buy presents because it is required, but rather to show the host that we care, appreciate and understand the nature of the special occasion.

The Torah commanded us to travel up to Jerusalem, to the Beit HaMikdash, on three special festivals - Pesach, Shavuot and Sukkot.

These holidays provide us with a special opportunity to come closer to HaShem by journeying to Jerusalem and offering sacrifices. In this way, we strengthen our bond with HaShem.

This Negative Mitzvah instructs us not to neglect bringing sacrifices when we journey to Jerusalem on these three festivals.