CC Madhya 8.43

ākṛtye-prakṛtye tomāra īśvara-lakṣaṇa
jīve nā sambhave ei aprākṛta guṇa
Word for word: 
ākṛtye — in bodily features; prakṛtye — in behavior; tomāra — of You; īśvara — of the Supreme Personality of Godhead; lakṣaṇa — the symptoms; jīve — in an ordinary living being; — not; sambhave — possible; ei — these; aprākṛta — transcendental; guṇa — qualities.
Translation: 
“My dear Sir, according to Your behavior and bodily features, You are the Supreme Personality of Godhead. It is impossible for ordinary living beings to possess such transcendental qualities.”
Purport: 

Śrī Caitanya Mahāprabhu’s bodily features were uncommon. Indeed, His body was extraordinary in its measurements. The measurement of His chest and the measurement of His forearms were the same. This is called nyagrodha-parimaṇḍala. As far as His nature is concerned, He was kind to everyone. No one but the Supreme Personality of Godhead can be kind to everyone. Therefore the Lord’s name is Kṛṣṇa, “all-attractive.” As stated in the Bhagavad-gītā (14.4), Kṛṣṇa is the kind father of everyone. In every species of life (sarva-yoniṣu), He is the original father, the seed-giver (bīja-pradaḥ pitā). How, then, can He be unkind to any living entity? One may be a man, an animal or even a tree, but the Lord is kind to everyone. That is God’s qualification. He also says in the Bhagavad-gītā (9.29), samo ’haṁ sarva-bhūteṣu: “I am equally kind to everyone.” And He advises, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja: “Give up all other engagements and simply surrender unto Me.” This instruction is meant not only for Arjuna but for all living entities. Whoever takes advantage of this offer is immediately immune to all sinful activity and returns home, back to Godhead. While present on this planet, Śrī Caitanya Mahāprabhu made the same offer.