So this is speculation. Is there a teaching in the NT where language is used that a child of God or one in the Beloved revert back to a son of wrath.
In John 10 Jesus says that the Father gives Him the sheep and the sheep hear His Voice and none will perish or be plucked.
That’s a concrete teaching.
And this to your quote:
1 Peter 1: NASB
1Peter, an apostle of Jesus Christ,
To those who reside as aliens, scattered throughout Pontus, Galatia, Cappadocia, Asia, and Bithynia, who are chosen
2according to the foreknowledge of God the Father, by the sanctifying work of the Spirit, to obey Jesus Christ and be sprinkled with His blood: May grace and peace be yours in the fullest measure.
3Blessed be the God and Father of our Lord Jesus Christ, who according to His great mercy has caused us to be born again to a living hope through the resurrection of Jesus Christ from the dead,
4to
obtain an inheritance
which isimperishable and undefiled and will not fade away, reserved in heaven for you,
5who are protected by the power of God through faith for a salvation ready to be revealed in the last time.