Could you show me where in the Word of God it tells of this period of this dispensation of grace? Thanks!
Well, I think the first step is accepting what Romans 6:14 is saying which encapsulates and summarizes the whole of Paul's writings in the New Testament - that we are not under the law but under grace. Unfortunately the church abandoned "grace not law" many years ago, but as Jude 3 prophesies, there is in these last days a returning to the "faith that was once delivered to the saints" - the Gospel of the Grace of Christ - what is being called the Grace Revolution.
Even while Paul was still alive, the Gospel of the Grace of Christ was being attacked and abandoned as revealed in Paul's sharp rebuke of the Galatians declaring a double curse on anyone who preaches another gospel than the Gospel of the Grace of Christ (Gal. 1:8-9).
Two great difficulties with the gospel of grace is
1) it goes against carnal thinking - the natural mind has a tough time understanding grace - it must be received by the Spirit and allowed to germinate in the heart and mind, and
2) Satan HATES the gospel of grace because he knows he cannot defeat anyone walking in the revelation of God's grace and love.
So the flesh and the devil have worked for the last 2000 years to squelch the gospel of grace. Even Peter talks about this difficulty saying that Paul speaks of things hard to understand (2 Peter 3:15-16). Paul was given this revelation of the gospel of grace and the New Covenant (2 Cor. 12; Heb 8:10-13, 10:16-17) unlike the other apostles.
I strongly urge you to pick up the book, "Destined to Reign" by Joseph Prince. It is life changing. Also, if you haven't yet receive the baptism in the Holy Spirit, I urge you to pray to Jesus for it - he promises he would give it to those who ask. The baptism in the Holy Spirit helps override the stubbornness of the natural mind and helps receive the wonderful things of God.
After you do all of that, if you still have questions, ask me.