Features of the literary structure
Paul writes, I don’t want you to be ignorant about the spiritual things (v.1). This is similar to 7:1, so Paul may be addressing the topic of spiritual things at the request of the Corinthians. Fee notes that "this is a nearly universal conviction (570n), but notes that Paul’s corrective comments imply that the Corinthians were not simply asking for information. I suspect that they did not admit any ignorance about this topic, so 12:1b may indicate that Paul is initiating the topic (cf. 11:18).