Instead of seeing freedom from the good and holy law as a permission to sin, see freedom from the rule of the Law as being set free from the power of sin. 

The power of sin is the law. 1 Corinthians 15:56

The Good and Holy law brings us to Christ. Jesus releases us from the rule, authority, curse and condemnation of the law, through his own body on the cross. We walk through this world breaking the whole law all day every day, yet we are righteous and holy as a gift. On account of Christ, crucified and resurrected. The law still rules over this world, as the wisdom of the world. The law is not our wisdom, Christ is our wisdom.

Study 1 Corinthians 1, verses 30 It is from him that you are in Christ Jesus, who became wisdom from God for us ​— ​our righteousness, sanctification, and redemption,

After listening to a guy telling Christians that they have to renew their minds to be law and sin conscious, which Romans 8 tells us is how we are walking in the flesh. I responded with a different mindset, of walking in the Spirit. 

Actually, we are righteous and holy as a gift, on account of Christ crucified and resurrected. Apart from what we do or don’t do. If we are law and sin conscious we are walking in the flesh. If righteousness and holiness comes through obedience to the law of Moses, Christ died for nothing. Gal 2:21. So yes, Christians ARE righteous and holy, as a gift. And this is the way we walk in the Spirit, in this world.

Should we sin so that grace may abound? No. We should walk in the Spirit where we are righteous and holy as a gift. 

For the Christians who communicate that in Matthew 5 Jesus is making his standards even higher than Moses’. It would be better for them if they had never been born. Jesus is speaking to hearts that are bound to the old legal system. Jesus is about to take that whole legal system away at the cross, so that those who trust in Christ for the forgiveness of sin no longer have to operate according to the legal system of Moses. We are righteous and holy as a gift. 

Moses and the legal system are still the operating systems of this world. And that will pass away when Jesus returns and the New Jerusalem comes down. The unrighteous, those who don’t believe in Jesus for the forgiveness of sins, will be taken off of this world. Those who are righteous and holy as a gift will inherit the new earth. 

While we are waiting for Jesus to return we have an open permission to use whatever gifts the Spirit gives us. The gifts are not gendered. To help our neighbor out as we are willing and able to, without Moses accusing us of all that we have left undone. 

All of the commands and demands in scripture now become appeals to a freed conscience. Meaning we can relax and trust that we might find ourselves doing some of these things, from time to time, as the Spirit is at work.

This is the love of God for us, in Christ Jesus.

2 Corinthians 3:7-18 explains how the Spirit’s ministry, to convict us that we are righteous as a gift, is more glorious than the ministry that brought death, chiseled in letters on stone. Referring to the law given to Moses at Mount Sinai.

7 Now if the ministry that brought death, chiseled in letters on stones, came with glory, so that the Israelites were not able to gaze steadily at Moses’s face because of its glory, which was set aside, 8 how will the ministry of the Spirit not be more glorious? 9 For if the ministry that brought condemnation had glory, the ministry that brings righteousness overflows with even more glory. 10 In fact, what had been glorious is not glorious now by comparison because of the glory that surpasses it. 11 For if what was set aside was glorious, what endures will be even more glorious.

12 Since, then, we have such a hope, we act with great boldness. 13 We are not like Moses, who used to put a veil over his face to prevent the Israelites from gazing steadily until the end of the glory of what was being set aside, 14 but their minds were hardened. For to this day, at the reading of the old covenant, the same veil remains; it is not lifted, because it is set aside only in Christ. 15 Yet still today, whenever Moses is read, a veil lies over their hearts, 16 but whenever a person turns to the Lord, the veil is removed. 17 Now the Lord is the Spirit, and where the Spirit of the Lord is, there is freedom. 18 We all, with unveiled faces, are looking as in a mirror at the glory of the Lord and are being transformed into the same image from glory to glory; this is from the Lord who is the Spirit.