KJV - 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.
ASV - For I would not, brethren, have you ignorant of this mystery, lest ye be wise in your own conceits, that a hardening in part hath befallen Israel, until the fulness of the Gentiles be come in;
BBE - For it is my desire, brothers, that this secret may be clear to you, so that you may not have pride in your knowledge, that Israel has been made hard in part, till all the Gentiles have come in;
WEB - For I don't desire, brothers,{The word for "brothers" here and where context allows may also be correctly translated "brothers and sisters" or "siblings."} to have you ignorant of this mystery, so that you won't be wise in your own conceits, that a partial hardening has happened to Israel, until the fullness of the Gentiles has come in,
YLT - For I do not wish you to be ignorant, brethren, of this secret -- that ye may not be wise in your own conceits -- that hardness in part to Israel hath happened till the fulness of the nations may come in;