In Exodus 20:7 we have "do not take the name of the Lord thy God in vain"
The Moral law includes the Ten Commandments as both pro-Bible Sabbath and pro-Sunday Scholars affirm.
This means "it is still wrong to take God's name in vain" -- as I think almost all of us would agree.
Only God can confirm His own Word. Scholars will always contradict each other. God never will.
The ministry of death of 2 Cor. 3 is the law of sin and death of Romans 7 and 8. It was written on stone. It was the Old Covenant, the Ten Commandments Exodus 34:28.
We are
not under the law of sin and death
IF we walk in the Spirit and follow the Commandments of the New Covenant which are
believing in the name of His Son, Jesus Christ and loving our neighbors as ourselves 1 John 3:23. That is the law of the Spirit of life in Christ Romans 8:2. Jesus Christ is God. Those truly filled with the Holy Spirit do not obey the flesh, but the Spirit. (Swearing is of the flesh.)
Paul also shows in Galatians 5 what is expected in our New Covenant of the law of the Spirit of life in Christ.
16 "I say then: Walk in the Spirit, and you shall not fulfill the lust of the flesh. 17 For the flesh lusts against the Spirit, and the Spirit against the flesh; and these are contrary to one another, so that you do not do the things that you wish. 18 But if you are led by the Spirit, you are not under the law.
19 Now the works of the flesh are evident, which are: adultery,fornication, uncleanness, lewdness, 20 idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies, 21 envy, murders, drunkenness, revelries, and the like; of which I tell you beforehand, just as I also told
you in time past, that those who practice such things will not inherit the kingdom of God.
22 But the fruit of the Spirit is love, joy, peace, longsuffering, kindness, goodness, faithfulness, 23 gentleness, self-control. Against such there is no law. 24 And those
who are Christ’s have crucified the flesh with its passions and desires. 25 If we live in the Spirit, let us also walk in the Spirit. 26 Let us not become conceited, provoking one another, envying one another."
John 15:10 "10 If you keep
My commandments, you will abide in My love, just as I have kept
My Father’s commandments and abide in His love."
Both of these sets of Commandments (the Commandments of Jesus, and the Commandments of the Father) are both based on the eternal law of God,
“
Hear, O Israel: The Lord our God, the Lord is one! 5 'You shall love the Lord your God with all your heart, with all your soul, and with all your strength.' 6 And these words which I command you today shall be in your heart."
Therefore when Jeremiah said His laws shall be written on our heart, this is what he foretold - the law of the Spirit of life in Christ. 1 John 3:23 "And this is His commandment: that we should believe on the name of His Son
Jesus Christ and
love one another, as He gave us commandment."
These are a much stricter set of commandments. But Jesus gave us the power to keep walking in love - the Holy Spirit. Those under the Old Covenant of the laws of sin and death only had their own strength to keep the Ten Commandments, but they weren't hard to keep. You just didn't kill anybody, etc. But hating your enemies was permissible. The New Covenant brings us to a whole new level of obedience. It has the power to make us holy, for without holiness, no one will see God.