New King James Version
But they did not understand the statement which He spoke to them.

King James Bible
And they understood not the saying which he spake unto them.

American Standard Version
And they understood not the saying which he spake unto them.

Berean Study Bible
But they did not understand the statement He was making to them.

Douay-Rheims Bible
And they understood not the word that he spoke unto them.

English Revised Version
And they understood not the saying which he spake unto them.

World English Bible
They didn't understand the saying which he spoke to them.

Young's Literal Translation
and they did not understand the saying that he spake to them,

Luke 2:50 Additional Translations ...