I understand your postion. However the "clear meaning" of Scripture is often a matter of dispute. Then the question is: how do you determine the meaning of Scripture?
The usual rule of thumb is:
(a) early Fathers of the Church (the Fathers don't aways agree, so we look for a "consensus of the Fathers," meaning, most of 'em);
(b) how the early Church worshipped (e.g. ancient hymnody and Liturgy), "Lex orandi, lex credendi";
(c) official documents of Councils and Synods...
Way, way down he list would be:
(x) the meaning most congenial to modern writers (last 500 years?) in critical discontinuity with the ancient Church
(y) the meaning most congenial to 21st century American re-inventers of Church (e.g. Gay Church Interprets Scripture!) and
(z) the meaning most congenial to me.
Makes sense?
Often. However, a doctrine such as the sinfulness of created man is a fairly easy one to ascertain throughout scripture.
If you let Scripture interpret Scripture on that point there should be very little confusion.