Mark 9:32

But they understood not that saying, and were afraid to ask him.
— Mark 9:32, King James Version

In other translations

World English Bible (WEB)

But they didn't understand the saying, and were afraid to ask him.

American Standard Version (ASV)

But they understood not the saying, and were afraid to ask him.

Young's Literal Translation (YLT)

but they were not understanding the saying, and they were afraid to question him.