By William Birch (excerpt below).
When one considers the amount of false, and at times heretical, views to which he held, it is truly a wonder how he became such an authority or cherished figure in the Protestant Church. In some circles, to quote Augustine is tantamount to quoting Scripture.
But for the purpose of this post, one thing stands out above his other errors. It is more than merely interesting that Augustine was the first one to introduce the idea that God had unconditionally elected some unto faith and salvation by decree and not others. And this he did not attribute to God's foreknowledge of forseen faith or rejection of Christ, as did his predecessors, but to God's sole prior decision and delight.
Even more shocking, however, in light of his novelty of unconditional election, was his statement, that, "It is, indeed, to be wondered at, and greatly to be wondered at, that to some of His own children ~ whom He has regenerated in Christ ~ to whom He has given faith, hope, and love, God does not give perseverance also." One seldom hears the Calvinist quoting this statement from Augustine.