3 Nephi 15:22

And they understood me not, for they supposed it had been the Gentiles: for they understood not that the Gentiles should be converted through their preaching;

The people in Jerusalem didn’t understand me. They thought I meant the Gentiles. They didn’t understand that the Gentiles would be converted through their teaching.

They didn’t understand me. They assumed I was talking about the Gentiles. They didn’t understand that the Gentiles would be converted through their preaching.