Day 23 covers all of Chapter 18, The Merits of a Person Who Rejoices at Hearing This Sutra, and opens Chapter 19, The Merits of the Teacher of the Dharma.

Maitreya Bodhisattva-mahāsattva asks of the merits given to those who rejoice at hearing the Lotus Sutra, and the Buddha responds:

Ajita! Suppose a bhikṣu, a bhikṣuṇī, an upāsaka, an upāsikā, or some other wise person, whether young or old, rejoices at hearing this sūtra in a congregation after my extinction. After leaving the congregation, he or she goes to some other place, for instance, to a monastery, a retired place, a city, a street, a town, or a village. There he or she expounds this sūtra, as he or she has heard it, to his or her father, mother, relative, friend or acquaintance as far as he or she can. Another person who has heard [this sūtra from him or her], rejoices, goes [to some other place] and expounds it to a third person. The third person also rejoices at hearing it and expounds it to a fourth person. In this way this sūtra is heard by a fiftieth person. Ajita! Now I will tell you the merits of the fiftieth good man or woman who rejoices at hearing [this sūtra].

And in gāthās:

Suppose a man rejoices at hearing this sūtra
Or at hearing even a gāthā of it
In a congregation,
And expounds it to a second person.

The second person expounds it to a third person.
In this way it is heard by a fiftieth person.
Now I will tell you of the merits Of the fiftieth person.

The Buddha then offers the example of a great almsgiver whose merits are described as “immeasurable and limitless.”

The Buddha said to Maitreya:

Now I will tell you clearly. The merits of the person who gave all those pleasing things to the living beings of the six regions of four hundred billion asaṃkhya worlds, and caused them to attain Arhatship are less than the merits of the fiftieth person who rejoices at hearing even a gāthā of this Sūtra of the Lotus Flower of the Wonderful Dharma.

And…

Ajita! The merits of the fiftieth person who rejoices at hearing this Sūtra of the Lotus Flower of the Wonderful Dharma are immeasurable, limitless, asaṃkhya. Needless to say, so are the merits of the first person who rejoices at hearing [this sūtra] in the congregation. His merits are immeasurable, limitless, asaṃkhya and incomparable.

Listening to sutra and inviting others to hear the sutra create benefits that play out across future lives.

Ajita, look! The merits of the person who causes even a single man to go and hear the Dharma are so many. It is needless to speak of the merits of the person who hears [this sūtra] with all his heart, reads it, recites it, expounds it to the great multitude, and acts according to its teachings.

And in gāthās:

Anyone who persuades others to sit and hear this sūtra
In the place where the Dharma is expounded,
Will be able to obtain the seat of Śakra or of Brahman
Or of a wheel-turning-holy-king by his merits.

Needless to say, boundless will be the merits
Of the person who hears this sūtra with all his heart,
And expounds its meanings,
And acts according to its teachings.

Chapter 6 itemizes The Merits of the Teacher of the Dharma:

“The good men or women who keep, read, recite, expound or copy this Sūtra of the Lotus Flower of the Wonderful Dharma, will be able to obtain eight hundred merits of the eye, twelve hundred merits of the ear, eight hundred merits of the nose, twelve hundred merits of the tongue, eight hundred merits of the body, and twelve hundred merits of the mind.