NET
2 But the Jews who refused to believe stirred up the Gentiles and poisoned their minds against the brothers.
Darby
2 But the Jews who did not believe stirred up the minds of [those of] the nations and made [them] evil-affected against the brethren.
KJV
2 But the unbelieving Jews stirred up the Gentiles, and made their minds evil affected against the brethren.