Did Paul say we must forget about Christ?

The verse below, if not understood from the context of rightly dividing the word of truth (2 Timothy 2:15), can cause a lot of confusion and can even make one wonder how Paul could say such a thing! Yet, the verse is completely understandable and perfectly accurate,

2 Corinthians 5:16 Therefore, from now on, we regard no one according to the flesh. Even though we have known Christ according to the flesh, yet now we know Him thus no longer. 

How can Paul write such a thing? How can the Bible contain a verse that instructs us to forget about Christ? Let me explain the perfectly sound logic and clarify the truth of this verse,

Paul is writing to the Corinthians during the 'mystery' dispensation. In this dispensation, the risen and glorified Christ has dispensed new revelations to Paul which has been kept secret since the world began (Col.1:26). Paul (being the apostle of the Gentiles, Rom.11:13) is the master builder and foundation layer of these new revelations, 1 Cor.3:10, which becomes the doctrine for the new creation, the Body of Christ.

The Kingdom gospel and law-based doctrine that was lived out and taught by Jesus during his 3-years of earthly ministry is addressed to and is applicable to the Jews (Gal.4:4, Matt.15:24), but is not addressed to, neither is directly applicable to the Body of Christ (Matt.10:5-6, Matt.15:24), since we are not under law, but under grace, (Rom.6:14).

With all this in mind, it should make perfect sense why Paul tells the church at Corinth that they should not know Christ any longer according to the flesh (ie: His earthly ministry). In other words, they should not follow after the law-based doctrine that Jesus taught and which belonged to the Jews but to now follow the new revelations revealed to Paul by the glorified Christ and given to a new group of people, the Body of Christ, who are free of the law and walk in a new manner, after the Spirit.

If you consider the very next verse in this passage, it will now read A LOT clearer and ring out with MUCH more insights. 

2 Corinthians 5:17 Therefore, if anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new.

Do you see? The new creation is the Body of Christ. Old things like the law and customs and the traditions of the elders and ceremonial and civil practices have passed away. All things have become new; a new grace gospel, a new mystery doctrine that was NEVER prophesied before Paul, a new foundation that Paul was laying, a new relationship and connection with God through Christ, and a new walk under the inspiration of the Spirit of Life indwelling us. This is why we know Him (Jesus in His earthly ministry) thus no longer, but now follow after the instructions and lifestyle of the glorified, heavenly Christ. Hallelujah!