Some Christians sadly, see some of the 10 Commandments as not fully binding. They cite verses in Romans 6, because we are not under law but are under grace then we can minimise or even ignore some of the commandments, like the 4th Commandment of keeping holy the sabbath. But a closer look at Romans 6:15, Paul says
“What then? Shall we sin because we are not under the law but under grace? By no means!”
God’s moral law of the 10 Commandments is still binding on Christians!
When the Bible says we are not under law, it means we are not under the judgment of the law, because Jesus took the punishment of us breaking the law. In that respect, we are under the grace of the Lord Jesus. This doesn’t give us freedom to disobey the commandments, but a greater desire and passion to obey the law.
As the Bible says:
“The law of the Lord is perfect reviving the soul” (Ps 19:7).
Jesus didn’t come to abolish the law but to fulfil it (Matt. 5:17).
If something is not abolished or destroyed it still stands.
The Ceremonial laws as seen in Leviticus, were fulfilled by Jesus, so they are no longer binding. Laws such as washing and animal sacrifice have been fulfilled by the fact that we are washed clean by Jesus through his personal sacrifice on the cross.
But the Moral law of the 10 Commandments is also fulfilled by Jesus, because He obeys the law perfectly and in the Sermon on the Mount, Jesus even expands the scope of its meaning to his followers as seen in Matthew 5:27-28
“You have heard that it was said, ‘You shall not commit adultery.’ But I tell you that anyone who looks at a woman lustfully has already committed adultery with her in his heart.”
Keeping the 10 Commandments can’t save us, but they are God’s moral guidelines in showing our thankfulness to Him because He has saved us in Christ.