Bhagavad Gita: Chapter 4/Verse 3

स एवायं मया तेऽद्य योगः प्रोक्तः पुरातनः ।
भक्तोऽसि मे सखा चेति रहस्यं ह्येतदुत्तमम् ॥४-३॥

sa evāyaṃ mayā te'dya yogaḥ proktaḥ purātanaḥ ।
bhakto'si me sakhā ceti rahasyaṃ hyetaduttamam ॥4-3॥

Indeed, that ancient yoga, today that was declared to you by me since you are devoted and a friend of mine. Indeed, that mystical teaching (referring to the ancient yoga) is supreme. 


Word-for-word translations

sas (pronoun, 3rd person, masculine, nominative, singular) = that

eva (adverb) (indeclinable) = indeed

ayaṃ (masculine, nominative, singular) = that

mayā (pronoun, 1st person, instrumental, singular) = by me

te (pronoun, 2nd person, dative, singular) = to you

adya (adverb) (indeclinable) = today

yogas (masculine, nominative, singular) = yoga

proktas (past passive participle, masculine, nominative, singular) = declared

purātanas (adjective) (masculine, nominative, singular) = ancient 


bhaktas (past passive participle, masculine, nominative, singular) =  devoted

asi (present tense, 2nd person, singular)= you are

me (pronoun, 1st person, genitive, singular) = of mine

sakhā (masculine, nominative, singular) = friend 

ca (conjunction) (indeclinable) = and

iti (punctuation) (indeclinable) = since

rahasyaṃ (neuter, nominative, singular) = mystical teaching

hi (adverb) (indeclinable) = indeed

etad (adjective) (neuter, nominative, singular) = that

uttamam (neuter, nominative, singular) = supreme