From left, Eli Harold, Colin Kaepernick and Eric Reid of the San Francisco 49ers kneel in protest during the national anthem on Oct. 6, 2016, in Santa Clara, Calif. (Thearon W. Henderson/Getty Images)

Michael Frost's Sept. 30 Religion essay, "Kaepernick vs. Tebow: Two Christians on their knees," was the finest I have read about the kneeling protests and about "two very different forms American Christianity has come to" today: "one that values personal piety" and "another that values social justice." Mr. Frost's characterization of one as relying primarily on the teachings of Saint Paul and the other on the minor prophets gave readers much food for thought.

When I saw Colin Kaepernick kneel, I could sense his sorrow, and the last words of Martin Niemöller's statement echoed in my mind: "Then they came for me — and there was no one left to speak for me." I wanted to speak up for Mr. Kaepernick, whether his religion matched mine or not.

Sharon Hoover, Lewes, Del.

Malcolm Jenkins should be congratulated for his efforts to reform the criminal-justice system, as described in his Oct. 1 op-ed, "From demonstrations to action." Those efforts would be strengthened if he included crime victims organizations in his coalition and avoided the inflammatory term "mass incarceration." If he doesn't already, he might spend some time explaining to young people in our cities' poorest neighborhoods that professional sports and entertainment are not the only paths out of poverty. He could tell them that staying in school and avoiding illegal drug use, gang membership and teen pregnancy are choices in their control that can make a big contribution to their attaining the promise offered all Americans by our Constitution and system of government.

Peter G. Pollak, Elkridge