Having written "Veyadata ha'Yom," What do we learn from "va'Hashevosa el Levavecha"?
Chafetz Chayim (Z'chor le'Miryam 21): "Veyada'ata" is to clarify the truth in the mind; "Va'hashevosa el Levavecha" is to fix the matter in the heart, and fulfill it in practice, 1 as the Torah writes in Eikev, 11:18 - "ve'Samtem es Devarai Eileh aal Levavchem".
Sha'arei Teshuvah 3:17: This is a Mitzvah [not merely to know, rather,] to contemplate the greatness of Hashem. 2
Chovos ha'Levavos (Sha'ar ha'Yichud Perek 3): It is intellectual investigation.
Kad ha'Kemach (Eivel 2): This is something that needs great investigation. One does not reach it at the start of investigation.
RS"R Hirsh: "V'Yadata" is to be totally convinced. If you forgot, or are close to forgetting, va'Hashevosa El Levavecha - return it to your heart (recall what you saw). 3
Refer to 4:39:1:1*. The Ba'alei Musar say that the distance between the head and the heart is equivalent to that of the heaven to the earth!
Knowledge with the mind is insufficient. If one does not take the lesson to heart, the heart (alias the Yeitzer ha'Ra) will override one's knowledge, as the Gemara says in Sanhedrin, 106b 'Rachmana Liba Ba'i' - See Rashi there.
Lev Eliyahu (Sh'mos p.155): R. Yonah lists after this Mitzvos Aseh of remembering Hashem's Chesed, fearing Him, loving Him, and clinging to Him. Through contemplating His greatness and remembering His Chesed, one comes to fear, from fear to love, and from love to Devekus.
What are the connotations of "Ein Od"?
