Matthew 23:31

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

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

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

So that ye testify to yourselves, that ye are sons of them who did murder the prophets;

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