New Living Translation
“But in saying that, you testify against yourselves that you are indeed the descendants of those who murdered the prophets.

American Standard Version
Wherefore ye witness to yourselves, that ye are sons of them that slew the prophets.

Berean Study Bible
So you testify against yourselves that you are the sons of those who murdered the prophets.

Douay-Rheims Bible
Wherefore you are witnesses against yourselves, that you are the sons of them that killed the prophets.

English Revised Version
Wherefore ye witness to yourselves, that ye are sons of them that slew the prophets.

King James Bible
Wherefore ye be witnesses unto yourselves, that ye are the children of them which killed the prophets.

World English Bible
Therefore you testify to yourselves that you are children of those who killed the prophets.

Young's Literal Translation
So that ye testify to yourselves, that ye are sons of them who did murder the prophets;

Matthew 23:31 Additional Translations ...