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The flip side of the card allows recipients to fill out a pledge that they identify with the campaign's slogan: "Honoring tradition, preserving democracy." Recipients then mail the card back to the foundation.

The campaign comes at a time when the relationship between secular and religious Israelis is strained. One example of the tension is the ongoing legal battle in Jerusalem about Sabbath traffic on a main thoroughfare that algo goes through religious neighborhoods.

Israeli President Ezer Weizman lent his support to the effort at a Monday reception at his Jerusalem residence, where the campaign was officially launched.

Education Minister Zevulun Hammer of the National Religious Party, who took part in the opening, said, "If we want to live together, we have to first build a common language."