I refer to the the Law, the Prophets, and the Writings ...
The tradition of the Roman Church through very much of two millennia was that there were no OT readings at Sunday Mass. But, through certain times, particularly Lent, the reading before the Gospel in the old rite is from the OT on all weekdays. (Last week, being an Ember Week as well, we had eleven such OT readings.)
Those accustomed to the Old Mass will have noticed that the Missal tells us, each day in Lent, what the 'Stational Church' was. I believe that at S John Cantius they have devised ingenious and edifying ways of bringing this alive in their liturgy! But my purpose today is to point out what these 'stational' arrangements really teach us.
These days were days when the whole Roman Church gathered together with the Pontiff to celebrate Mass together. Pope, presbyters, and people prayed and celebrated Lent corporately.
This meant that the plebs sancta Dei did get a substantial exposure to the OT. The fact that these arrangements are not today part of the life even of most 'traddy' Catholics is inevitable but, I think, suboptimal.
A couple of rather obvious suggestions:
(1) If you are fortunate enough to have access to the Old Roman Rite on a daily basis, take advantage of this!!
(2) Otherwise, perhaps you could find time to read the weekday Lenten lections ... carefully and liturgically? (You might do this by 'labiating'; that is, moving your tongue and lips as you read ... just as your clergy do when saying their Office. Otherwise, 'reading' can so easily degenerate into 'casting the eyes down the page'.)
Looking ahead, I hope a time may come when the place of the OT in the Roman Rite will be reconsidered. This is not the time to do that: so many people were so wounded by the corrupt and illegal changes made to the Western Liturgy after the Council that fiddling around now would be unpastoral and inopportune. But, until 1962, Liturgy was not unchangeable ... it evolved graduallyand organically and according to type and in accordance with genuinely Catholic principles.
It would be possible for OT readings to be added to the Epistles and Gospels in the Missal of S Pius V.
In fact, a suitable such table was devised in 1965 ... in the Church of England. Readers will be aware that the Sunday Epistles and Gospels in the Book of Common Prayer are the same as those in the Missal of S Pius V*. So the OT readings offered in that Anglican list might be appropriate accompaniments to the authentic Roman Rite.
*There are some dislocations due to the fact that the Anglican Epistles and Gospels follow a lectionary which was widely common in Catholic Medieval Northern Europe but not quite the same as that used in Southern Europe. But this is a minor detail easily accommodated.