You make the blunderous mistake that Aquinas and Augustine are using unpurified philosophy. Thomistic philosophy takes Paul very much into account and man's ability to reason using divinely revealed knowledge. So, you are actually reading a condemnation of Aquinas in Paul that is not correct.
Christianity is divinely revealed. The existence of God is not.
***You make the blunderous mistake that Aquinas and Augustine are using unpurified philosophy.***
Paul did his work WITHOUT RECOURSE to philosophy..
"For Christ did not send me to baptize but to preach the gospel, and not with words of eloquent wisdom (READ "PHILOSOPHY"), lest the cross of Christ be emptied of its power. (READ "CHRISTIANITY + PHILOSOPHY = POWERLESS CHRISTIANITY")
Are Aquinas and Augustine better expositors of the grace of God than Paul?