Actually we were responsible for our sins before we got born again which is WHY we needed to get born again.
And, of course if we sin after we get saved we must confess and forsake our sin in order to get back in right standing with the Lord (Proverbs 28:13, and 1 John 1:9)
Uh huh, and their "hidden knowledge" comes from their father the devil.
Are you one of those souls that believes you cannot cease from sin?
Have you not seen Philippians 4:13 yet???
2 Peter 2:10-16
But chiefly them that walk after the flesh in the lust of uncleanness, and despise government. Presumptuous are they, selfwilled, they are not afraid to speak evil of dignities.
Whereas angels, which are greater in power and might, bring not railing accusation against them before the Lord.
But these, as natural brute beasts, made to be taken and destroyed, speak evil of the things that they understand not; and shall utterly perish in their own corruption;
And shall receive the reward of unrighteousness, as they that count it pleasure to riot in the day time. Spots they are and blemishes, sporting themselves with their own deceivings while they feast with you;
Having eyes full of adultery, and that cannot cease from sin; beguiling unstable souls: an heart they have exercised with covetous practices; cursed children:
Which have forsaken the right way, and are gone astray, following the way of Balaam the son of Bosor, who loved the wages of unrighteousness;
But was rebuked for his iniquity: the dumb ass speaking with man's voice forbad the madness of the prophet.