When the Israelites come to the promised land there is to be a year of tithe.
The harvest after 3 years is the first fruits, 10% is to be collected before anything else and given to God, recognising that the land, their freedom, came from him.
Then Moses reminds the people to follow all the rules with all their heart and soul to be blessed in high honour by God.
The have been so many rules over the last 10 or so chapters, some are more beautiful than we can manage today, in terms of the way they would demolish the effects of inequality in society. Others seem completly crazy today.
But this message: acknowledge God as the source of all we have, love him and receive his love. This lives.
It feels like the moment for an amen.