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Rabbi Diane Tiferet Lakein

Pastoral and Spiritual Care & Service Leadership

Rabbi Diane Tiferet Lakein (she/hers) holds a B.A. in East Asian Studies and International Politics from Princeton University and an M.A. in Anthropology from the University of Michigan, Ann Arbor. Born in San Francisco, she spent time in Stockholm, Sweden as a child and in Beijing, China as an undergraduate. She moved to Germany in the mid-1990s to conduct ethnographic research on anti-racist responses to rising xenophobia – and discovered her passion for Jewish spirituality and education.

Rabbi Diane received a Masters of Jewish Education from Hebrew College and ordination from ALEPH, the Alliance for Jewish Renewal. Prior to joining the Spiritual Leadership Team and Religious School staff at Congregation Nevei Kodesh in 2020, she most recently served as Rabbi for two progressive communities in Europe: Chawurah Gescher in Freiburg, Germany and Migwan in Basel, Switzerland.

Rabbi Diane is a member of Haver, the Rabbinic Council of Boulder, Colorado and of the Rocky Mountain Rabbis and Cantors (RMRC), based in Denver. She is also a member of OHALAH, the Association of Rabbis for Jewish Renewal and the General Rabbinical Council of Germany – Allgemeine Rabbinerkonferenz (ARK ).

To learn more about Rabbi Diane go to

Hazzan Shayndel Adler

Director of Family Life & Service Leadership

Hazzan Shayndel Adler (she/hers) is an ordained cantor through ALEPH, the Alliance for Jewish Renewal; is an ordained Kohenet through the Kohenet Hebrew Priestess Institute and also completed ALEPH's Kol Zimra Chant Leader Training and the Davennen' Leadership Training Institute. She has served as a cantor for approximately eleven years in Reform, Renewal and Conservative congregations and has been an educator and an administrator in Jewish and secular settings in California for over twenty-six years.

She holds a BA in Liberal Studies/Elementary Education and a Multiple Subjects Teaching Credential from Humboldt State University. She is also a trained Waldorf Educator, a teacher of the School of Uncovering the Voice and is a certified holistic health practitioner with an emphasis on spiritual healing and sound meditation. In addition to her part-time position at Nevei Kodesh, she also gives singing lessons and sound healings and is an education consultant/supervising teacher for a homeschooling charter school.

Hazzan Shayndel joined Nevei Kodesh in 2021 and has supported the religious school's ongoing growth and development in a safe and welcoming environment that encourages connection, joy, curiosity, creativity, and deep and meaningful learning.

To learn more about Hazzan Shayndel:

Ba'alat Tefilah Michelle Wolf

Service Leadership

Ba’alat Tefilah (Master of Prayer) Michelle Wolf is a lifelong vocalist with experience in a range of genres: classical, jazz, a cappella, and sacred liturgy. She is most on-purpose when leading Jewish prayer and chant, using her voice and presence to open hearts and help others connect to Source. 

Michelle served as cantor for Nevei Kodesh under our founding spiritual leader, Rabbi Tirzah Firestone, during 11 cycles through the calendar. For her mastery as Jewish liturgist, Michelle was honored with a Certificate of Empowerment by Rabbi Firestone and Rabbi Zalman Schachter-Shalomi (z’’l) and granted the titles Ba’alat Tefilah and Shlichat Tzibbur (2011).

Michelle coaches youth in B’nai Mitzvah education and regularly leads services for Shabbat, High Holidays, and other holidays and rituals throughout the Jewish year. CD releases include PrayerSongs with Bat Kol (sacred Jewish music), and Love Café with IRIS (women’s a cappella). For her secular work, Michelle develops educational exhibits with ECOS Communications (

Educated at Stanford University (BA, History), Columbia University’s Teachers College, Middlebury College (MA, French), and Aleph’s Davvenen’ Leadership Training Institute. Ongoing studies include: parenting two young adult sons, ever-deepening relationship with a committed life partner, and the blessings of close family, friends, and community. 

To learn more about Ba’alat Tefilah (Master of Prayer) Michelle Wolf:

Note: “Ba’alat Tefilah” means Master of Prayer, who leads the congregation.

Rabbi Tirzah Firestone

Rabbi Emerita

Rabbi Tirzah Firestone, Ph.D., our founding rabbi, is now Rabbi Emerita. Reb Tirzah is a renowned teacher, author and Jungian therapist. She speaks and teaches locally and nationally on the topics of spirituality, ancient mystical wisdom for the modern soul, the re‐integration of feminine wisdom into the Jewish tradition, and ancestral healing.   Ordained by Rabbi Zalman Schachter-Shalomi in 1992, she is a leader in the international Jewish Renewal movement. 

Her publications include With Roots in Heaven (Dutton, 1998), The Receiving: Reclaiming Jewish Women’s Wisdom (Harper San Francisco, 2003), and Wounds Into Wisdom: Healing Intergenerational Trauma (Monkfish, 2019). She offers workshops on modern applications of ancient wisdom and ancestral healing: how to transform patterns of suffering from our past and bring forth clarity, wisdom, and blessings for ourselves and those who come after us. She also offers workshops, services and teachings locally from time to time. 

For more information:

Jonathan Morse

Synagogue Administrator

Jonathan Morse 

I bring many years of business leadership experience both in for profit and nonprofit organizations. My career began in a family business selling typewriters and office equipment. I built a computer and network services company. My success opened the door to participating and serving in nonprofit work. As President of the Board of Congregation Temple Emanu-El in Reno NV my responsibilities spanned capacity building, member engagement and organizational sustainability. I serve as Director on the National Board of the Sjogren's Foundation to inform a medical community, pharmaceutical organizations and corporations of the complexity of complications affecting 4,000,000 Americans. I love to exercise, explore the Rockies and celebrate the lives of our children and grandchildren.

Bruno Treves

Communications Coordinator and Tech Assistant

mailto:communications@niveikodesh.orgBruno Treves (he/him) was born and raised in a small Jewish community in Patagonia. He graduated from SDSU  with a double degree in economics and international business, with a specialization in marketing. During the past 10 years, he has focused his career in the fields of holistic health and spirituality.

Bruno shares, "Feeling blessed to be joining Nevei Kodesh in service to the community. My experience since day one felt like love at first sight. Working here has already renewed my love for Judaism, as well as my interest to study Torah and Kabbalah. 

My wish is to do my best with whatever is needed, and to continue to learn about the wisdom, teachings, and practices that guided our ancestors." 

Aside from working at Nevei Kodesh, Bruno also teach yoga, has a massage therapy practice, and leads a devotional world music band called Divino BetSatori.

Mariana Grosz

Administrative Assistant

Mariana Grosz (she/hers)  has been involved with Jewish communities since childhood.

Originally from Argentina, she co-founded the Jewish Community of Bariloche, a small ski town in Patagonia which at the time had only 30 Jewish families.

In 2002, she immigrated to the U.S. with her husband and two teenage children, first in Puerto Rico where she served at Temple Beth Shalom as the sole staff person. Later, she was hired by Kehillat Israel in Pacific Palisades, California, where she held several different positions - Religious School Assistant, Communications Associate, and Assistant to the Rabbis. 

Mariana’s background education is in Fine Arts, and she enjoys teaching and working in her own studio. She also is passionate about music, singing in different choirs, big and small. She lives in Boulder with her husband, Noe, and feels blessed to have both her children and their families close by.

Fri, July 1 2022 2 Tammuz 5782