Caiaphas did not say this on his own. Instead, as high priest that year, he was prophesying that Jesus would die for the nation,
Berean Standard Bible (BSB)
Now he didn’t say this of himself, but being high priest that year, he prophesied that Jesus would die for the nation,
World English Bible (WEB)
And{G1161} this{G5124} spake he{G2036}{(G5627)} not{G3756} of{G575} himself{G1438}: but{G235} being{G5607}{(G5752)} high priest{G749} that{G1565} year{G1763}, he prophesied{G4395}{(G5656)} that{G3754} Jesus{G2424} should{G3195}{(G5707)} die{G599}{(G5721)} for that{G5228} nation{G1484};
Strong's King James
(51) Now he didn't say this from himself, rather being high priest that year he prophesied that Yeshua was going to die for the nation.
The F.O.G
The F.O.G Message
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,
Young's Literal Translation
