The U.S. Constitution is the supreme law of the land. The 10 Commandments can be likened to the U.S. Constitution. I call it the Lord's Constitution - universal moral laws that He wrote with His hand on stone.
The Jews follow the divine laws to the letter. The Christians, however, pick and choose. What they don't like they don't do because the Christians claim that they are under "grace," or that the laws have been changed according to their interpretation. With one quick sweep, "Grace" and "irrelevance," the majority of so called Christians no longer follow God's 10 Commandments.
Is the argument sustainable that Christians are under “grace” so that they no longer are required to obey all of the Ten Commandments, or that parts of the 10 Commandments are no longer relevant and valid today? If that is true, why then would a perfect God give us imperfect laws, the Ten Commandments, that would become moot and of no significance now as suggested by some so called Biblical scholars? In other words, does God's Ten Commandments have an expiration date?
Is our God a perfect God or an imperfect God? If He is an imperfect God, why should we worship Him? If He is a perfect God, why don’t we obey Him?
The Ten Commandments is a set of moral standards that God had prescribed for His children to follow. Follow implies faith and obedience.
And without faith, it is impossible to please Him… (Hebrew 11:6).
Obedience to God proves our love for Him (1 John 5:2-3), demonstrates our faithfulness to Him (1 John 2:3-6), glorifies Him in the world (1 Peter 2:12), and opens avenues of blessing for us (John 13:17) GotQuestions.org, 2017.
The earliest example of obedience, or rather the lack of obedience, is when Adam and Eve disobeyed God's order not to eat fruit from the forbidden tree. Consequently, both lost eternal life. Their disobedience to do what God had asked them to do or not to do cost them their eternal lives.
Obedience to God is the absolute standard that God has set for all of us. He made no exception to Adam and Eve - no "Grace" granted to them when they disobeyed Him. He meant what He said. His Words last forever - no expiration date.
God created Adam and Eve with His hands. If He takes away eternal life from Adam and Eve whom He had created with His hands because they disobeyed Him, what chance do we have, human beings who are the product of our parents' lust?
Don't let the word "grace" ever fool you. Total obedience to God is not negotiable. He wants us to be obedient to His words. Adam and Eve did not get a second chance ("grace") after they disobeyed Him.
We should first try our BESTto be obedient to Him. Once we have done that, any deficiency in our obedience performance will be taken care of by His Grace - in that order.