New Living Translation
Heaven and earth will disappear, but my words will never disappear.

American Standard Version
Heaven and earth shall pass away: but my words shall not pass away.

Berean Study Bible
Heaven and earth will pass away, but My words will never pass away.

Douay-Rheims Bible
Heaven and earth shall pass away, but my words shall not pass away.

English Revised Version
Heaven and earth shall pass away: but my words shall not pass away.

King James Bible
Heaven and earth shall pass away: but my words shall not pass away.

World English Bible
Heaven and earth will pass away, but my words will by no means pass away.

Young's Literal Translation
the heaven and the earth shall pass away, but my words may not pass away.

Luke 21:33 Additional Translations ...