The clarity of the teachings of the Scriptures

I'm working through Schmid's Doctrinal Theology of the Evangelical Lutheran Church, 2 pages a day. It's proving good and useful. Some thoughts from recently on perspicuity in the Scriptures, my paraphrase:

1. Salvation is taught perspicuously.

2. The remaining passages of Scripture receive light from these [that is, the salvation passages].

3. From perspicuous passages, we deduce a rule of Faith.

4. If we cannot attain clarity from all passages, we propose nothing contrary to the analogy in their [that is, the "rule of faith" passages] interpretation.