Instead of making a completely fresh start, he takes the customs that they’ve got already and allows time to change them in a gradual way.
He is prepared to deal with people in ways they can understand, before trying to lead them further.
I am the son of two schoolteachers and the grandson of a third.
I may have mentioned this before.
This provides me with a very accessible analogy for the way God approaches the question of giving laws to the people of Israel.
He behaves like a teacher.
A good teacher is always conscious of the capabilities and limitations of his pupils, and he tries to give them teaching at the appropriate level.
He talks to them in terms which they will be able to understand, and sets out to improve their understanding in gradual ways.
If their reading abilities have taken them to the end of the first of the “Janet and John” books, then he offers them the second book.
If their mathematical skills have taken them as far as adding up and “taking away”, then he might begin showing them how to multiply and
divide.
What he’s not going to do is start scribbling Einstein’s equations on the blackboard.
Teaching is not about “zapping” people with instantaneous advanced knowledge (except in science fiction stories).
It is the slow and patient work of gradual training.
We find a similar patience in the way the God of Israel deals with his people.
Thus his intention for marriage was that “a man leaves his father and mother and cleaves to his wife and they become one flesh” (Genesis ch2
v23).
Yet in the Old Testament laws he accepts, for the time being, the practice of divorce, which Jesus blames on “the hardness of their hearts”
(Matthew ch19 v8).
And why does God allow them to fall short of the intended standard?
Because their minds are not yet ready for the intended standard.
They are still in training.
He finds this people living in a very patriarchal society, like all the other societies of the time.
Whatever he thinks about this, he does not try to change it at a stroke.
He modifies their behaviour gradually, beginning with mild restraints on the husband’s power.
He finds them loving their brothers and other kinsmen and encourages them to treat the rest of the nation in the same way.
However, they are not yet ready to extend the concept of “brothers” to the world at large, so that part of the training is postponed for a later
stage.
In short, what we see in the laws of the Old Testament, and in the overall history of the Old Testament, is the slow and patient work of gradual
training.
God does not “zap”. He teaches.
When modern critics are assailing the laws and the culture of the Old Testament, this is precisely what they are complaining about.
They don’t think God should have been giving his people this patient teaching.
They think he should have “zapped” them , instantly, to a state of spiritual maturity comparable to their own.
If they had been in God’s place (and they would certainly have done the job better) they would have “zapped”.
The God of the Old Testament is much more patient than they are.
He finds his people at the “cuh-ah-tuh-CAT” level of spiritual education, and he lifts them gradually.
A lot of work will be required before they can reach the kind of spiritual heights from which these critics can look down haughtily at the junior
versions of themselves.
The fact that God is willing to undertake this slow and patient work is very revealing.
It shows us that God is a teacher.
This has a bearing on the question of whether these laws can be changed.
We find in the classroom that lessons vary according to the age and circumstances of the pupils.
The books used in the infants’ class are not the books used in the university lecture hall.
I’ve heard a physics graduate complaining that he had to re-learn the laws of physics at every stage in his education.
In the same way, the guidance which God gives to his people might be expected to change according to the level of their understanding as well as the
condition of their society.
And the fact that these laws are so closely bound up with the needs of a particular kind of society is another reason for regarding them as
temporary.
They can only be “God’s laws”, if at all, for a period in Israel’s history, rather than for all time.
The details of the laws might be variable, as long as the principles which lay behind them were respected.
In other words, as Paul might put it, the
letter of the Law would be less binding than the
spirit of the Law.