King James Version
And he said unto them, Set your hearts unto all the words which I testify among you this day, which ye shall command your children to observe to do, all the words of this law.English Standard Version
he said to them, "Take to heart all the words by which I am warning you today, that you may command them to your children, that they may be careful to do all the words of this law.New International Version
he said to them, "Take to heart all the words I have solemnly declared to you this day, so that you may command your children to obey carefully all the words of this law.