Paul is baffled why  sexual immorality was allowed into the church by the brethren, by the local leadership.  Why wasn't it dealt with before he had to hear about it.  Its Passover season.  We are to be examining ourselves for leaven (sin).  Not just as individuals, but also as the body or bride of Christ.

What areas are we already  turning a blind eye to, neglecting, or even encouraging for wrong behavior to continue withing the body.