Bhagavad Gita Chapter 11, Text 43

Bg 11.43

pitasi lokasya caracarasya
tvam asya pujyas ca gurur gariyan
na tvat-samo ’sty abhyadhikah kuto ’nyo
loka-traye ’py apratima-prabhava

Word for word: 
pita — the father; asi — You are; lokasya — of all the world; cara — moving; acarasya — and nonmoving; tvam — You are; asya — of this; pujyah — worshipable; ca — also; guruh — master; gariyan — glorious; na — never; tvat-samah — equal to You; asti — there is; abhyadhikah — greater; kutah — how is it possible; anyah — other; loka-traye — in the three planetary systems; api — also; apratima-prabhava — O immeasurable power.

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
You are the father of this complete cosmic manifestation, of the moving and the nonmoving. You are its worshipable chief, the supreme spiritual master. No one is greater than You, nor can anyone be one with You. How then could there be anyone greater than You within the three worlds, O Lord of immeasurable power?

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The Supreme Personality of Godhead, Krishna, is worshipable as a father is worshipable for his son. He is the spiritual master because He originally gave the Vedic instructions to Brahma and presently He is also instructing Bhagavad-gita to Arjuna; therefore He is the original spiritual master, and any bona fide spiritual master at the present moment must be a descendant in the line of disciplic succession stemming from Krishna. Without being a representative of Krishna, one cannot become a teacher or spiritual master of transcendental subject matter.

The Lord is being paid obeisances in all respects. He is of immeasurable greatness. No one can be greater than the Supreme Personality of Godhead, Krishna, because no one is equal to or higher than Krishna within any manifestation, spiritual or material. Everyone is below Him. No one can excel Him. This is stated in the Svetasvatara Upanisad (6.8):

na tasya karyam karanam ca vidyate
na tat-samas cabhyadhikas ca drsyate

The Supreme Lord, Krishna, has senses and a body like the ordinary man, but for Him there is no difference between His senses, His body, His mind and Himself. Foolish persons who do not perfectly know Him say that Krishna is different from His soul, mind, heart and everything else. Krishna is absolute; therefore His activities and potencies are supreme. It is also stated that although He does not have senses like ours, He can perform all sensory activities; therefore His senses are neither imperfect nor limited. No one can be greater than Him, no one can be equal to Him, and everyone is lower than Him.

The knowledge, strength and activities of the Supreme Personality are all transcendental. As stated in Bhagavad-gita (4.9):

janma karma ca me divyam
evam yo vetti tattvatah
tyaktva deham punar janma
naiti mam eti so ’rjuna

Whoever knows Krishna’s transcendental body, activities and perfection, after quitting his body, returns to Him and doesn’t come back again to this miserable world. Therefore one should know that Krishna’s activities are different from others. The best policy is to follow the principles of Krishna; that will make one perfect. It is also stated that there is no one who is master of Krishna; everyone is His servant. The Caitanya-caritamrta (Adi 5.142) confirms, ekale isvara Krishna, ara saba bhrtya: only Krishna is God, and everyone else is His servant. Everyone is complying with His order. There is no one who can deny His order. Everyone is acting according to His direction, being under His superintendence. As stated in the Brahma-samhita, He is the cause of all causes.