arrimar el hombro

to do one's bit; pitch in

“Y, claro, se defiende: “No tiene nada que ver con una cuestión política sino de justicia. Necesitamos dinero y todos tenemos que arrimar el hombro. Y con más razón la Iglesia, que no lo ha hecho nunca”.” — And, of course, (s)he responds: "It doesn't have anything to do with a question of politics, but rather justice. We need money and we all have to pitch in. Even more so the Church, which has never done so before".