Award-winning Israeli/Canadian singer-songwriter and activist Yael Deckelbaum, whose song “Prayer of the Mothers” was the anthem of Israel’s “Women Wage Peace” movement, celebrates Israel’s diversity at 70 in a concert with Arab-Christian singer Miriam Toukan and other Israeli musicians living in New York. Before the concert, Lab/Shul — along with local rabbis, artists, peacemakers, activists, poets and musicians — will cast a circle of ritual and prayer for peace.