King James Version
For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.English Standard Version
Lest you be wise in your own conceits, I want you to understand this mystery, brothers: a partial hardening has come upon Israel, until the fullness of the Gentiles has come in.Catholic Public Domain Version
For I do not want you to be ignorant, brothers, of this mystery (lest you seem wise only to yourselves) that a certain blindness has occurred in Israel, until the fullness of the Gentiles has arrived