If Augustine meant the Roman Catholic Church, he was both unbiblical and consequently wrong.
If Augustine meant the universal church - the Body of Christ - right on, right on!
I do notice you do not have any Scriptural support that substantiates your claim.
Wouldn't it be better to just believe the Word of God that salvation is in Christ alone? Wouldn't it be better to leave aside your rituals and beads and come to faith in Him for eternal life?
Oh? So just like Luther and his personalized “bible”, y’all like to cherry-pick the very saints you make reference to?