Actually it did.
And since it was the Catholic Church who authored the book we know as the Bible,
Actually they didn't.
...then it is for the Catholic Church to discern its meaning in context ... which is why we say the Catholic Church is a “teaching Church” ...
So, what did Christians have as a spiritual guide in the nearly four centuries before the Bible existed? They had the TRADITION of the Church.
The early church had the Holy Spirit to guide them in all truth. Do Roman Catholics not read the very book they claim to have given??
You mean they didn't pass out paperback Bibles and let everyone figure out for themselves what it meant, so they could argue about it on Internet message boards?