The phrase
"same hymnal" means to be in agreement or on the same page with someone else. This means that two or more people have the same understanding or opinion about something. It refers to people being in harmony and having a shared understanding or goal.
Full definition
«I was trying to get everyone to sing from
the same hymnal,» he says.
«I believe the governor endorsed CeCe a couple of days ago and Kathy Hochul was here and so, yes, I think the governor and I are singing from
the same hymnal,» Schumer said.
A plea for help in the Senate: And speaking of unity, Senate Democrats would really like everyone singing from
the same hymnal when it comes to flipping control of the chamber.
The socialist / leftist / Democrat party approach is to get everybody singing from
the same hymnal.
«Perhaps if we can better talk about issues like these, we can once again sing from
the same hymnal,» says Harrang.