BhG 13.16

syntax

tat jñeyam (that to be known) bhūteṣu ca (and in beings) avibhaktam [api] (although being undivided) vibhaktam iva ca (and as if being divided) sthitam (situated).
bhūta-bhartṛ (maintaining beings) grasiṣṇu (swallowing) prabhaviṣṇu ca (and ruling) [asti] (it is).

grammar

avibhaktam	–	a-vi-bhakta (vi-√bhāj – to divide, to separate) PP 1n.1 n. – being undivided;
ca	–	av. – and;
bhūteṣu	–	bhūta (√bhū – to be), PP 7n.3 – in all beings;
vibhaktam	–	vi-bhakta (vi-√bhāj – to divide, to separate) PP 1n.1 n. – being divided;
iva	–	av. – like, in the same manner as, almost, exactly;
ca	–	av. – and;
sthitam	–	sthita (√sthā – to stand) PP 1n.1 n. – being situated;
bhūta-bhartṛ	–	bhūta-bhartṛ 1n.1 n.; TP: bhūtānāṁ bhartr iti – which maintains beings (from: √bhū – to be, PP bhūta – been, real, world; √bhṛ – to hold, bhartṛ – sustainer);
ca	–	av. – and;
tat	–	tat sn. 1n.1 n. – that;
jñeyam	–	jñeya (√jñā – to know, to understand) PF 1n.1 n. – to be known, to be learnt;
grasiṣṇu	–	grasiṣṇu 1n.1 n. – the swallower (from: √gras – to eat);
prabhaviṣṇu	–	pra-bhaviṣṇu 1n.1 n. – lord, ruling (from: pra-√bhū – to spring up from, to produce, prabhava – birth, source);
ca	–	av. – and;

textual variants

ca bhūteṣu → vibhakteṣu / tu bhūteṣu (in divided / but in beings);
ca sthitam → saṁsthitam (situated);
bhūta-bhartṛ ca → bhūta-bhṛn na ca (and which does not maintain beings);
taj jñeyam → vijñeyam / taṁ jñeyam (to be distinguished / that to be known);

Śāṃkara

kiṃ ca—
avibhaktaṃ ca pratidehaṃ vyomavat tad ekam | bhūteṣu sarva-prāṇiṣu vibhaktam iva ca sthitaṃ deheṣv eva vibhāvyamānatvāt | bhūta-bhartṛ ca bhūtāni bibharti taj jñeyaṃ bhūta-bhartṛ ca sthiti-kāle | pralaya-kāle grasiṣṇu grasana-śīlam | utpatti-kāle prabhaviṣṇu ca prabhavana-śīlaṃ yathā rajjvādiḥ sarpāder mithyā-kalpitasya

Rāmānuja

devamanuṣyādibhūteṣu sarvatra sthitam ātmavastu veditṛtvaikākāratayā avibhaktam / aviduṣāṃ devādyākāreṇa „ayaṃ devo manuṣyaḥ” iti vibhaktam iva ca sthitam / devo ‚ham, manuṣyo ‚ham iti dehasāmānādhikaraṇyenānusandhīyamānam api veditṛtvena dehād arthāntarabhūtaṃ jñātuṃ śakyam iti ādāv uktam eva, „etad yo vetti” iti, idānīṃ prakārāntaraiś ca jñātuṃ śakyam ity āja bhūtabhartṛ ceti / bhūtānāṃ pṛthivyādīnāṃ deharūpeṇa saṃhatānāṃ yad bhartṛ, tad bhartavyebhyo bhūtebhyo ‚rthāntaraṃ jñeyam; arthāntaram iti jñātuṃ śakyam ityarthaḥ / tathā grasiṣṇu annādīnāṃ bhautikānāṃ grasiṣṇu, grasyamānebhyo bhūtebhyo grasitṛtvenārthāntrabhūtam iti jñātuṃ śakyam / prabhaviṣṇu ca prabhavahetuś ca, grastānām annādīnām ākārāntareṇa pariṇatānāṃ prabhahetuḥ, tebhyo ‚rthāntaram iti jñātuṃ śakyam ityarthaḥ; mṛtaśarīre grasanaprabhavādīnām adarśanān na bhūtasaṃghātarūpaṃ kṣetraṃ grasanaprabhavabharaṇahetur iti niścīyate

Śrīdhara

kiṃ ca — avibhaktam iti | bhūteṣu sthāvara-jaṅgamātmakeṣu avibhaktaṃ kāraṇātmanābhinnaṃ kāryātmanā vibhaktaṃ bhinnam ivāvasthitaṃ ca samudrāj jātaṃ phenādi samudrād anyan na bhavati | tat-svarūpam evoktaṃ jñeyaṃ bhūtānāṃ bhartṛ ca poṣakaṃ sthiti-kāle | pralaya-kāle ca grasiṣṇu grasana-śīlaṃ sṛṣṭi-kāle ca prabhaviṣṇu nānā-kāryātmanā prabhavana-śīlam

Madhusūdana

yad uktam ekam eva sarvam āvṛtya tiṣṭhatīti tad vivṛṇoti pratideham ātma-bheda-vādināṃ nirāsāya avibhaktam iti | bhūteṣu sarva-prāṇiṣu avibhaktam abhinnam ekam eva tat | na tu pratidehaṃ bhinnaṃ vyomavat sarva-vyāpakatvāt | tathāpi deha-tādātmyena pratīyamānatvāt pratidehaṃ vibhaktam iva ca sthitam | aupādikatvenāpāramārthiko vyomnīva tatra bhedāvabhāsa ity arthaḥ |
nanu bhavatu kṣetrajñaḥ sarva-vyāpaka ekaḥ, brahma tu jagat-kāraṇaṃ tato bhinnam eveti | nety āha bhūta-bhartṛ ca bhūtāni sarvāṇi sthiti-kāle bibhartīti tathā pralaya-kāle grasiṣṇu grasana-śīlam utpatti-kāle prabhaviṣṇu ca prabhavana-śīlaṃ sarvasya | yathā rajjv-ādiḥ sarpāder māyā-kalpitasya | tasmād yaj jagataḥ sthiti-layotpatti-kāraṇaṃ brahma tad eva kṣetrajñaṃ pratideham ekaṃ jñeyaṃ na tato ‚nyad ity arthaḥ

Viśvanātha

bhūteṣu sthāvara-jaṅgamātmakeṣu avibhaktaṃ kāraṇātmanā abhinnaṃ kāryātmanā vibhaktaṃ bhinnam ivā sthitaṃ | tad eva śrī-nārāyaṇa-svarūpaṃ sat | bhūtānāṃ bhartṛ sthiti-kāle pālakaṃ | pralaya-kāle grasiṣṇu saṃhārakam | sṛṣṭikāle prabhaviṣṇu ca nānā-kāryātmanā prabhavana-śīlam

Baladeva

avibhaktam iti | vibhakteṣu mitho bhinneṣu jīveṣv avibhaktam ekaṃ tad brahma vibhaktam iva prati-jīvaṃ bhinnam iva sthitam | ekaṃ santaṃ bahudhā dṛśyamānam iti śruteḥ |
eka eva paro viṣṇuḥ
sarvatrāpi na saṃśayaḥ |
aiśvaryād rūpam ekaṃ ca
sūryavad bahudheyate || iti smṛteś ca |
tac ca bhūta-bhartṛ-sthitau bhūtānāṃ pālakaṃ pralaye teṣāṃ grasiṣṇu kāla-śaktyā saṃhārakaṃ, sarge prabhaviṣṇu pradhāna-jīva-śaktibhyāṃ nānā-kāryātmanā prabhavana-śīlaṃ | śrutiś ca yato vā imāni bhūtāni jāyante yena jātāni jīvanti yat prayanty abhisaṃviśanti tad brahma tad vijijñāsasva [TaittU 3.1.1] iti