Deuteronomy 32:46

46 And he said to them, Take heed with your heart to all these words, which I testify to you this day, which ye shall command your sons, to observe and do all the words of this law.

Deuteronomy 32:46 Meaning and Commentary

Deuteronomy 32:46

And he said unto them
By way of exhortation:

set your hearts to all the words which I testify among you this day;
it was not enough to hear them, but they were to lay them up in their hearts, and retain them in their memories; and not only so, but reflect on them in their minds, and closely apply to the consideration of them, and get the true knowledge and sense of them, and put it in practice:

which ye shall command your children to observe, to do all the words of
this law;
which shows that the exhortation does not respect the song only, but the whole law delivered in this book; which they were not only to attend to themselves, but to transmit to their children, and enjoin them the observance of, that so religion might be perpetuated in their posterity.

Deuteronomy 32:46 In-Context

44 And Moses wrote this song in that day, and taught it to the children of Israel; and Moses went in and spoke all the words of this law in the ears of the people, he and Joshua the of Naue.
45 And Moses finished speaking to all Israel.
46 And he said to them, Take heed with your heart to all these words, which I testify to you this day, which ye shall command your sons, to observe and do all the words of this law.
47 For this no vain word to you; for it your life, and because of this word ye shall live long upon the land, into which ye go over Jordan to inherit it.
48 And the Lord spoke to Moses in this day, saying,

The Brenton translation of the Septuagint is in the public domain.