"Now then, you and the Sanhedrin petition the commander to bring him before you on the pretext of wanting more accurate information about his case. We are ready to kill him before he gets here." (NIV)
So now you, along with the council (Sanhedrin), give notice to the commandant to bring [Paul] down to you, as if you were going to investigate his case more accurately. But we [ourselves] are ready to slay him before he comes near. (AMP)
Now therefore ye with the council signify to the chief captain that he bring him down unto you to morrow, as though ye would enquire something more perfectly concerning him: and we, or ever he come near, are ready to kill him. (KJV)