4.16

किं कर्म किमकर्मेति कवयोऽप्यत्र मोहिताः ।
तत्ते कर्म प्रवक्ष्यामि यज्ज्ञात्वा मोक्ष्यसेऽशुभात् ॥

kiṃ karma kim akarmeti kavayo 'py atra mohitāḥ
tat te karma pravakṣyāmi yaj jñātvā mokṣyase 'śubhāt

Kṛṣṇa (कृष्ण) is still speaking, to Arjuna.

The verse

Even the wise are confused here about what action is and what inaction is; I shall declare that action to you, knowing which you will be freed from what is not good.

नेपालीमा

कर्म के हो र अकर्म के हो भनेर यहाँ विद्वान्हरू पनि अलमलिन्छन्। त्यो कर्म म तिमीलाई भन्नेछु, जसलाई जानेर तिमी नराम्रोबाट मुक्त हुनेछौ।

Where it sits

4.15 told him to act as the ancients acted, and this verse admits that act is the word nobody is sure of, including the wise. The declaration he promises occupies the rest of this stretch, and the knot of it is 4.18.

Split: किम् + कर्म + किम् + अकर्म + इति + कवयः + अपि + अत्र + मोहिताः + तत् + ते + कर्म + प्रवक्ष्यामि + यत् + ज्ञात्वा + मोक्ष्यसे + अशुभात्

kim + karma + kim + akarma + iti + kavayaḥ + api + atra + mohitāḥ + tat + te + karma + pravakṣyāmi + yat + jñātvā + mokṣyase + aśubhāt

Sanskrit, in depth

The words

देवनागरीWordGrammarSense
किम्kimnominative neuterwhat.
कर्मkarmanominativeaction.
किम्kimnominative neuterwhat.
अकर्मakarmanominativeinaction. karma (कर्म) with the negative a- (अ-).
इतिitiindeclinablethus. It closes the quoted puzzle.
कवयःkavayaḥnominative pluralthe wise, the poets. People who can see a thing and say it.
अपिapiindeclinableeven.
अत्रatraindeclinablehere, on this point.
मोहिताःmohitāḥnominative pluralconfused. From muh (मुह्).
तत्tataccusativethat.
तेtedative encliticto you.
कर्मkarmaaccusativeaction. The thing he is about to explain.
प्रवक्ष्यामिpravakṣyāmifuture, 1st singularI shall declare. From pra-vac (प्र-वच्).
यत्yataccusativewhich.
ज्ञात्वाjñātvāgerundhaving known.
मोक्ष्यसेmokṣyasefuture, 2nd singular, middleyou will be released. From muc (मुच्).
अशुभात्aśubhātablativefrom what is not good.

The phrases

किं कर्म किम् अकर्म इति कवयः अपि अत्र मोहिताः kiṃ karma kim akarma iti kavayaḥ api atra mohitāḥ states the tangle. "What is action, what is inaction?" Even the wise are confused here. किम् अकर्म kim akarma is kim akarma (किमकर्म), and akarma iti (अकर्म इति) is akarmeti (अकर्मेति). kavayaḥ api (कवयः अपि) is kavayo 'pi (कवयोऽपि), and api atra (अपि अत्र) is apy atra (अप्यत्र).

tat te karma pravakṣyāmi (तत् ते कर्म प्रवक्ष्यामि) is the promise. I shall declare that action to you. tat te (तत् ते) doubles the t (त्): tat te (तत्ते).

yat jñātvā mokṣyase aśubhāt (यत् ज्ञात्वा मोक्ष्यसे अशुभात्) is what the knowing is for. Knowing which, you will be released from what is not good. yat jñātvā (यत् ज्ञात्वा) is yaj jñātvā (यज्ज्ञात्वा): t (त्) before j (ज्) becomes j (ज्). mokṣyase aśubhāt (मोक्ष्यसे अशुभात्) is mokṣyase 'śubhāt (मोक्ष्यसेऽशुभात्).

Sanskrit in this line

pravakṣyāmi (प्रवक्ष्यामि) and mokṣyase (मोक्ष्यसे) are both future. "I shall declare" is his part. "You will be released" is Arjuna's part, and it is middle: the release happens to him. The gerund jñātvā (ज्ञात्वा) sits between them. The freeing depends on the knowing, and the knowing depends on the declaration.

Say it back

The two-word puzzle, then what he will do with it. If akarma (अकर्म) is pronounced as karma (कर्म), the puzzle is gone. Stay here.