In plain words
And one who studies this dharmic dialogue of ours—I regard Myself as worshipped by that person through jñāna-yajña.
Word for word
And he who will study this dialogue of us two, in accord with dharma, by him I would be worshipped with the yajña of knowledge: this is My conviction.
The commentators
Bhagavadgītābhāṣyam
योऽपि —
अध्येष्यते च पठिष्यति यः इमं धर्म्यं धर्मादनपेतं संवादरूपं ग्रन्थं आवयोः, तेन इदं कृतं स्यात् । ज्ञानयज्ञेन — विधिजपोपांशुमानसानां यज्ञानां ज्ञानयज्ञः मानसत्वात् विशिष्टतमः इत्यतः तेन ज्ञानयज्ञेन गीताशास्त्रस्य अध्ययनं स्तूयते ; फलविधिरेव वा, देवतादिविषयज्ञानयज्ञफलतुल्यम् अस्य फलं भवतीति — तेन अध्ययनेन अहम् इष्टः पूजितः स्यां भवेयम् इति मे मम मतिः निश्चयः ॥ ७० ॥
In plain words
And whoever else —
Whoever studies, whoever recites this righteous dialogue between the two of us, has already accomplished something real by doing so. 'By the sacrifice of knowledge' — because among all sacrifices, whether by formal rite, spoken recitation, murmured recitation, or purely mental offering, the sacrifice of knowledge is the finest, being wholly internal — studying the Gītā itself is praised here as equal to that highest sacrifice. Or it may simply be telling us the fruit: that studying this text brings a fruit equal to the fruit of a knowledge-sacrifice offered to the gods themselves. 'By this study, may I be honored, may I be revered' — that is My own firm conviction.
Close to the Sanskrit
And whoever —
He who will study — will recite — this righteous, not-departing-from-dharma text, in the form of our dialogue: by him this [merit] would be accomplished. 'By the sacrifice of knowledge' — among sacrifices [performed] by injunction, audible recitation, murmured recitation, and mental recitation, the sacrifice of knowledge, because of being mental, is the most excellent; and therefore, by that sacrifice of knowledge, the study of the teaching of the Gītā is [here] praised; or, it is precisely a rule about the fruit, [meaning] the fruit of this [study] is equal to the fruit of a knowledge-sacrifice directed at deities and the like — [as it is said]: 'by that study, may I be worshipped, revered' — this is my conviction, my firm resolve.