The word behind “sanctify” (hagiazo) in verse 23 uses a rare form called the optative mood. Out of 28,121 verbs in the New Testament, this form occurs only about 68 times. It is the form used in Romans 6:15 when Paul asks whether we should just keep on sinning since we are not under Law, but under grace. His response is an emphatic “Far from it!” or “God forbid!” This verb form indicates the word is to be applied in the strongest terms. That’s why the translators render it “sanctify you completely.”

As we have seen in earlier segments, we bear the name of God and of the Lord Jesus. The Revelation also tells us that we will bear the name of the new Jerusalem. This is a curious statement until we read Revelation 21:9–10

Acceptance by God can come about in only on way. We must be holy as our Father in heaven is holy.

You can't even be charged with any wrong because God has justified you. That means you were found not guilty in God's court. Think about it. How can you be guilty of anything if Jesus has given you His righteousness? (see 2 Corinthians 5:21)