Berean Study Bible
Caiaphas did not say this on his own. Instead, as high priest that year, he was prophesying that Jesus would die for the nation,

King James Bible
And this spake he not of himself: but being high priest that year, he prophesied that Jesus should die for that nation;

American Standard Version
Now this he said not of himself: but, being high priest that year, he prophesied that Jesus should die for the nation;

Darby Bible Translation
But this he did not say of himself; but, being high priest that year, prophesied that Jesus was going to die for the nation;

Douay-Rheims Bible
And this he spoke not of himself: but being the high priest of that year, he prophesied that Jesus should die for the nation.

English Revised Version
Now this he said not of himself: but being high priest that year, he prophesied that Jesus should die for the nation;

Young's Literal Translation
And this he said not of himself, but being chief priest of that year, he did prophesy that Jesus was about to die for the nation,