Sins of ancestors

A prophetess claims that we should repent and seek forgiveness for the sins of our ancestors.  Really? 
And she uses these verses in 1 Peter 1 to try and justify what she says:

knowing that you were not redeemed with corruptible things, like silver or gold, from your aimless conduct received by tradition from your fathers, but with the precious blood of Christ, as of a lamb without blemish and without spot.
~•1 Peter 1:18-19

I don't understand why she uses that verse to try to convince us to repent and seek forgiveness for the sins of our ancestors.

John Gill's commentary regarding "your aimless conduct received by the tradition from your fathers" reads as follows:

meaning not the corruption of nature, which is propagated from father to son by natural generation, and lies in the vanity of the mind, and is the spring and source of an evil conversation; though the saints, as they are redeemed from all sin, so from this, that it shall not be their condemnation; not Gentilism, which lay in vain philosophy, in idolatry and superstition, and in evil and wicked conversation, encouraged by the example of their ancestors; but Judaism, and either regards the ceremonial law, which was delivered by Moses to the Jewish fathers, and by them handed down to their posterity; and which was vain, as used and abused by them, and was unprofitable to obtain righteousness, life, and salvation by, and therefore was disannulled by Christ, who has redeemed and delivered his people from this yoke of bondage; or rather the traditions of the elders, which our Lord inveighs against, ( Matthew 15:3 ) &c. and the Apostle Paul was brought up in, and zealous of, before conversion, ( Galatians 1:14 ) as the Pharisees were. These were the inventions and decrees of them they called (twba) , "fathers", to whose dogmas and decisions they paid the utmost respect.

No!  Jesus became cursed on the cross in my place.  I need only confess and repent and seek forgiveness for my OWN sins, not those of my ancestors!

The soul who sins shall die. The son shall not bear the guilt of the father, nor the father bear the guilt of the son. The righteousness of the righteous shall be upon himself, and the wickedness of the wicked shall be upon himself.
~•Ezekiel 18:20

For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him.
~•2 Corinthians 5:21

Christ has redeemed us from the curse of the law, having become a curse for us (for it is written, “Cursed is everyone who hangs on a tree”), that the blessing of Abraham might come upon the Gentiles in Christ Jesus, that we might receive the promise of the Spirit through faith.
~•Galatians 3:13-14

Please read the Bible so that you can discern the false from the truth.  Don't hang on the words of false prophets.  Be wise as serpents, gentle as doves.