In an interview with Israeli Channel 2 evening news in March 1994, he told an interviewer that Rabbi Schneerson's place as the Messiah and the fact of his "eternal life" was "as secure as the rising of the sun in the morning".
He wrote a number of books of critique on the writings of Elazar Man Shach, leader of Lithuanian Haredim - a prominent opponent of the Chabad-Lubavitch movement and of Rabbi Schneerson himself-under the title Yedaber Shalom.