Paul reminds the Corinthians and us of what God has done for and is doing for all of us. Because Jesus died for them and us, we are saved by grace. Not only have we been saved, we have already been given access to heavenly knowledge and speech. All this to confirm the testimony that Christ is alive and lives in us. Just as the Corinthians had access to every spiritual gift they needed, so do we. As they waited and we wait for the return of Jesus, there is nothing we need that is not available to us now. And we can add to all that, the fact that Jesus has the power to keep us blameless until He returns. That is His promise to us and God has never failed to deliver on His promises.
12 That is why I am suffering as I am. Yet this is no cause for shame, because I know whom I have believed, and am convinced that he is able to guard what I have entrusted to him until that day.—2 Tim. 1:12 (NIV)