Don't add to Christ words. Christ says we must beleive and be baptised. There is no explicit commandment to search Holy Scripture for what we beleive.
There is one truth and our 'job' as you put it; is to be baptised and to beleive that truth.
Further Christ mentions a way to tell whether our church is a good tree, or a bad one, and it's based on the fruit that comes out of it. If we practice the true faith it should be evident in our lives and how we conduct ourselves.
??? How are men to believe if not by reading the word of God and being led by the Holy Spirit? Are we to believe our emotions? Our feelings? What other men tell us is true?
Scripture is the word of God. Search it and find Him.
We agree about the fruits of the Spirit. We are known by our fruit; they're an excellent road map.