They will understand 

that I am the LORD

And you, you have acted worse than your ancestors, each of you following your own willful, evil hearts and paying no attention to me.

Make me live again according to your faithful love so I can keep the law you’ve given!

Jesus said to them, "Prophets are honored everywhere except in their own hometowns, among their relatives, and in their own households. -Mark 6:4

When you tell them all this, they won't listen to you.

On the day I brought your ancestors out of the land of Egypt, I didn’t say a thing—I gave no instructions—about entirely burned offerings or sacrifices.

Don’t trust in lies: “This is the LORD’s temple! The LORD’s temple! The LORD’s temple!

Jesus answered, “Throwing this kind of spirit out requires prayer.”

I know about your willingness to help.

So show them the proof of your love and the reason we are so proud of you, in such a way that the churches can see it.