To teach against the eternal security of the believer, its an attack on Christ being the Author of Eternal Salvation, which He gives to them He died for Heb 5:9
9 And being made perfect, he became the author of eternal salvation unto all them that obey him;.
9 And being made perfect, he became the author of eternal salvation unto all them that obey him;.
What then, are God's Commandments, that must be Obeyed?
He said, DO NOT SIN!
Do NOT LOOK AT A WOMAN in LUST!
there's many here and we both know this.
So, if God says, DO NOT SIN.
and we must Obey in order to have Eternal Salvation.
then each time we SIN, this is being Broken.
so, how can one break the Commands of God through Disobedience and claim they have Eternal Salvation.
i am merely going off this specific Verse, 9, that you have presented.