THIS is an AWESOME chapter! God stresses the importance of the Israelites TEACHING their children generation after generation after generation, and these verses stand out for me, and here again is reiterated the "fear of the Lord":
Verse 2- That thou mightest fear the Lord thy God, to keep all his statutes and his commandments, which I command thee, thou, and thy son, and thy son's son, all the days of thy life; and that thy days may be prolonged.
Verse 5- And thou shalt love the Lord thy God with all thine heart, and with all thy soul, and with all thy might.
And here is a "key" that God repeats here in this verse, and it's about "the heart":
Verse 6- And these words, which I command thee this day, shall be in thine heart
And God elaborates, that if it is in their hearts, they will "speak" of the God they love in their sitting down and their rising up and in their comings and goings and in their conversations with each other.....and that, because they love their God, this will be as natural as "breathing":
Verse 7- And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up.