In the Vedas the Supreme Lord is accepted as the purest of the pure.
The eighth verse of Sri Ishopanishad, the topmost Upanishad, states that Krishna, the Supreme Personality of Godhead, is shuddham and apapa-viddham
sa paryagāc chukram akāyam avraṇam asnāviraḿ śuddham apāpa-viddham
kavir manīṣī paribhūḥ svayambhūr yāthātathyato ’rthān vyadadhāc chāśvatībhyaḥ samābhyaḥ (Sri Ishopanishad Verse 8)
To confirm that the Lord is always pure and uncontaminated, Sri Ishopanishad describes him as shuddham (antiseptic) and apapa-viddham (prophylactic). He is antiseptic in the sense that even an impure thing can become purified just by touching Him. The word “prophylactic” refers to the power of His association.. The Lord is also apapa-viddham because sin cannot touch Him. Even if He acts in a way that appears to be sinful, such actions are all good, for there is no question of His being affected by sin. Because in all circumstances He is shuddham, most purified, He is often compared to the sun.
paraṁ brahma paraṁ dhāma pavitraṁ paramaṁ bhavān
puruṣaṁ śāśvataṁ divyam ādi-devam ajaṁ vibhum
āhus tvām ṛṣayaḥ sarve devarṣir nāradas tathā
asito devalo vyāsaḥ svayaṁ caiva bravīṣi me (BG 10.12-13)
Arjuna said: You are the Supreme Brahman, the ultimate, the supreme abode and purifier, the Absolute Truth and the eternal divine person. You are the primal God, transcendental and original, and You are the unborn and all-pervading beauty. All the great sages such as Nārada, Asita, Devala, and Vyāsa proclaim this of You, and now You Yourself are declaring it to me.
raja-vidya raja-guhyam pavitram idam uttamam
pratyaksavagamam dharmyam su-sukham kartum avyayam (BG 9.2)
This knowledge is the king of education, the most secret of all secrets. It is the purest knowledge, and because it gives direct perception of the self by realization, it is the perfection of religion. It is everlasting, and it is joyfully performed.
Sixty-four transcendental qualities that are fully and eternally manifest in Lord Krishna are mentioned in the Bhakti Rasamrit Sindhu. Prominent among them is Purity.
In the Nectar of Devotion it is mentioned “There are two kinds of supreme purity. When one type is possessed, one is able to deliver a sinful person. When the other type is possessed, one does not do anything which is impure. A person who possesses either of these qualities is called supremely pure. Krishna is both; He can deliver all sinful conditioned souls, and at the same time, He never does anything by which He can be contaminated.”
There are many examples where just by touch of Lord Krishna, the sinful reactions have been absolved. Like Kubja the Hunch Backed woman, The Lizard – King Nriga, The sanke- Vidyadahra.
Lets chant the Holy Name of the Purest of the Pure to help us cleanse our heart of all the sins and turn us into Pure devotees to remain in His service always.
The best cleanser to turn a person pure in this Kaliyuga is chanting the Holy Name of the Lord
Hare Krishna Hare Krishna Krishna Krishna Hare Hare
Hare Rama Hare Rama Rama Rama Hare Hare]
Nama 63 – VishnuSahasranama