Beis Hamikdash destroyed because of lack of rebuke (connection to Devarim). We need to rebuke to rebuild it.

Concepts: : Avos (chapter 6) “Love reproof” one of 48 ways to acquire Torah. Giving or receiving? “Love?” – Tochachos is plural (correcting errors); Lack of rebuke connects to baseless hatred. “I am not getting involved” comes from lack of love; Rebuke from “Love”; Today we do not rebuke because we truly do not love each other; Gemara: Rebuke “one another” from same person because that is easier and real friendship; Rebuke is not limited from Rabbis to others (in fact from a rabbi someone might respond “you cannot understand our test”);  Also “Son of Amram.”