Deuteronomy 6:7
and you shall teach them diligently to your children, and shall talk of them when you sit in your house, and when you walk by the way, and when you lie down, and when you rise up.
WEB
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.6.7 teach: Heb. whet, or, sharpen
KJV
What Deuteronomy 6:7 means
Moses tells parents that faith is passed to the next generation in the ordinary talk of everyday life, woven through every hour of a normal day, from breakfast to bedtime.
These words come from a long speech Moses gave to the people of Israel near the end of his life. They were camped at the edge of a new country, about to cross over and start a life there without him. Moses knew he would not be going with them, so he spent his last days telling them the things he most wanted them to remember. Just before this line, he had given them the most important one of all: that there is one God, and they were to love him with everything they had.
This verse is about how that love was meant to stay alive once Moses was gone, when the people were settled and busy with ordinary life. His answer is surprisingly plain. It happens at home, in the hands of parents, in everyday conversation with their children all through a normal day: when they are sitting in the house and when they are out on the road, when they lie down at night and when they get up in the morning. Those four moments are his way of saying every part of the day, in every place. The faith was meant to be woven right into regular life.
The two lines that follow paint the same idea. Tie these words to your hand, Moses says, and write them on the doorframe of your house, so they meet you as you come and go. Behind the whole passage sits one simple conviction: the things that matter most are passed down slowly, in the steady, close company of one generation with the next, in the middle of a shared and ordinary life.