The power of Having Our Say: The Delaney Sisters’ First 100 Years will creep up on you. It also reminds us that in theater, context can be everything, as this revival of a Broadway success may pack even more punch 25 years after its original appearance in book form.

On the surface Having Our Say could seem like a placid day of reminiscences between two centenarian sisters, Sarah Delany (Sadie) and Elizabeth Delany (Bessie). These two daughters of an emancipated slave invite us in to listen in as they recall 100 years they have spent together. You soon find yourself unable to turn away, and the show, nearly a quarter century after its Broadway run, provides a trenchant commentary – with the occasional bombshell - on issues of race, justice and the social unrest that continues to divide us. The stories of the Delany sisters will stay with you.

Adapted from a 1994 autobiography, the Goodman production under the direction of Chuck Smith also brings stellar performances by two actresses: Ella Joyce plays Bessie (1891 – 1995), who lived to 104; and Marie Thomas is her younger sister Sadie (1889 –1999) who died at 109. Working at the top of their craft, the two master the stage for this revival of Emily Mann’s 1995 Broadway hit. (It ran 317 performances, and it would be easy to imagine this incredible show staying around for months here, too.)

Having Our Say recounts the lives these determined, accomplished sisters lived, with a century of American life as the sweeping backdrop. We meet generations of their ancestors, black and white, slave and free. We hear of freedoms conferred as the Civil War ends, of the challenges to those freedoms with the rise of Jim Crow, the celebration of women’s suffrage, the tale of the Great Migration as blacks head North, the rich cultural outpouring of the Harlem Renaissance, and the personal trials and suffering of the Delany family members.

While there is no plot in the conventional sense, nonetheless this reverie is almost hypnotic as we watch Bessie and Sadie make tea, keep house, quibble, cook a ham and other dishes, and move through their day. The two have sharp minds, recalling names, dates and events without struggle, occasionally bickering over recollections.

Sadie became the first black woman to teach domestic science in the New York City Public School System; her older sister Bessie was the first black woman dentist in New York. The pair at first appear to be somewhat genteel spinsters, but quickly enough establish for us that Bessie is the acerbic and more combative of the pair; Sadie more even tempered and approachable. “We’re vinegar and molasses,” as Bessie puts it.

As Bessie and Sadie, Joyce and Thomas are working at the pinnacle of their craft, delivering two hours of non-stop dialog, all the while performing the most natural housekeeping – scene after scene loaded with seemingly guileless execution of “stage business” activities as they fuss about in the kitchen, dining room and living room. At one point I recall watching Joyce’s Bessie wipe crumbs from a kitchen table for a full ten minutes as a side note to her lines of dialog. Simple as such actions appear, the perfection of the timing in tandem to the scripted words is the mark of a great actress. We realize we are in the presence of masters of the craft.

While the time frame is historical – for example, Bessie and Sadie can only describe the possibility of the Obama Presidency they would never witness – their alignment with historic figures is illuminating. Sadie was a fan of George Washington Carver, an agent of change adhering to practical social and economic strategies. Bessie supported W.E B. DuBois, an advocate for active movement toward social change. Both sisters felt that given the choice between supporting women’s rights and black rights, their self-interest was most centered on black issues. While they celebrated women’s suffrage, they also professed to an abiding devotion to Eleanor Roosevelt, and explain the actions that boosted her appeal to the African-American population.

The show is loaded with lessons in history and the story of lives – Bessie and Sadie mourn the death of their mother and of their disabled sibling, their loneliness in old age (“Lord, send us someone new,” they pray). We learn their spiritual practice (yoga and prayer daily); their pride in their parents (Dad was the first African-American Episcopal Bishop and Mom was head of operations at St. Augustine College).

Without question, Having Our Say is a great show, beautifully acted and directed. Also worth noting: The lovely turntable set that rotates between the Delany kitchen and living room, designed by Mike Tutaj.

Having Our Say, scheduled with four matinees and four evening performances weekly, and runs through June 10 at the Goodman Theatre, comes highly recommended.