In the Bhagavad-gītā you will find that the Supreme Lord says in the Eighteenth Chapter,
- sarva-dharmān parityajya
- mām ekaṁ śaraṇaṁ vraja
- ahaṁ tvāṁ sarva-pāpebhyo
- mokṣayiṣyāmi mā śucaḥ
- (BG 18.66)
He says, "My dear Arjuna, I have spoken to you all about Bhagavad-gītā. I do not know whether you have understood the whole thing or not, but because you are My friend and I love you and you love Me, I say you the most confidential thing to you. And what is that? You give up everything and just follow Me. You just give up all your concocted things in the mind and just become Kṛṣṇa conscious."
"Oh, I shall give up everything and simply I shall follow You?" "Yes." "Oh, how can I do? I have got so many department of knowledge and department of things. How can I?" No. He says, mā śucaḥ: "Don't hesitate." Now, what will be the result? The result will be ahaṁ tvāṁ sarva-pāpebhyo mokṣayiṣyāmi: (BG 18.66) "I shall deliver you from all reactions of your sinful acts."
You know, of course, according to Vedic literature... And I don't say about the Vedic literature. That is the injunction of every scripture, either Bible, Koran, or any religious scripture, that we suffer due to our sinful actions. And our sinful actions are due to our ignorance. This is the cause.