In our text (below) Paul is telling the believing Corinthians that because they are saved and in Christ, they are not lacking in any spiritual gift. For this reason, Paul was telling them that they should be confident in their salvation and should eagerly be waiting for the return of Christ.
1 Corinthians 1:7-8
… you are not lacking in any gift, awaiting eagerly the revelation of our Lord Jesus Christ, 8 who shall also confirm you to the end, blameless in the day of our Lord Jesus Christ. (NASB, bold for emphasis)
In verse 8 Paul goes on with this theme, telling them that when He comes and they see Him, He will confirm them as blameless. This no doubt means that because they are believers, His blood will have done its work to make them perfect in His sight—all their sins will be forgiven and they will be glorified as He is.
These verses are much like what Paul wrote in Philippians 1:6, “For I am confident of this very thing, that He who began a good work in you will perfect it until the day of Christ Jesus.”
Notice that the description of His return in both verses are very similar. In 1 Corinthians 1:8 it is “the day of our Lord Jesus Christ,” and in Philippians 1:6 it is “the day of Jesus Christ.” I think both of these descriptions refer to that day when He comes to resurrect and to rapture the church (1 Thess. 4:15-17).
Philippians 1:6 also speaks of this confidence in our salvation. In both passages Paul tells us that the Christian can be confident that his salvation will be secure until He comes. I like the way Paul describes it in Philippians 1:6. God’s good work in us (through Christ in us) will continue until it is finished and perfected—which will be on the day of His coming.
Yes, on that day when we see Him and look into His eyes we will see Him as He is; and we will see, surprisingly, that we are as Him—glorified.