We know today that creation is ongoing. New worlds are created and new species emerge, and humanity and their society evolve. As a consequence, God has no other choice than to change his methods while relating to creation. The Christian God is a relational God. He relates to you differently as a child than as an adult. He has different demands.
God's righteousness is eternal (Psalms 119:142), which means that all of His instructions for how to act in accordance with Hid righteousness are therefore also eternally valid (Psalms 119:160), which means that they don't change, but eternal laws can be conditional so that the way that they apply changes depending upon the circumstances. For example, the Israelites were given a number of laws while they were wandering the wilderness for 40 years that had the condition "when you enter the land..." that only apply when someone is living in the land. Or for example, a father could have an unchanging rule that everyone who us under 18, so someone can could still act in accordance with that rule as they change from being a child to an adult. The unchanging rule can still be valid even after a child becomes and adultery, but if the father were to have another child, then they would still have a curfew, so a a change in the rule would mean that the father no longer thought that anyone should have curfews even if they are under 18, or in regard to God, a change in His law would mean that an action was no longer in accordance with His eternal righteousness.
Someone who disregarded everything that their schoolmaster taught them after they graduated would be missing the whole point of a school master and would need to go back for a remedial education. A student does not move on to algebra by disregarding everything that they were taught about addition, subtraction, multiplication, and division, but rather their new teacher builds upon what they were previously taught. Someone who moves on from the basics so that they are no longer even doing the basics is regressing rather than progressing by building upon the basics.
That's why the law was given as a temporary measure, until the Israelites were ready to receive the Gospel of Christ (Galatians 3:23-25).
In Matthew 4:17-23, the Gospel of Christ calls for us to obey the Law of God, which is in accordance with Jesus being sent as the fulfillment of the promise by blessing us through turning us form our wickedness (Acts 3:25-26), and which is the Gospel that was made known in advance to Abraham in accordance with the promise (Galatians 3:8). In Galatians 3:26-29, every aspect of being children of God, in Christ, through faith, children of Abraham, and heirs to the promise is directly connected with living in obedience to the Law of God through faith. In 1 John 3:4-10, those who do not practice righteousness in obedience to the Law of God are not children of God. In 1 John 2:6, those who are in Christ are obligated to walk in the same way he walked, which was in obedience to the Law of God. In Romans 3:31, our faith upholds God's law. In John 8:39, Jesus said that if they were children of Abraham, then they would be doing the same works as him. In Genesis 18:19, Genesis 26:5, and Deuteronomy 30:16, the promise was made to Abraham and brought about because he walked in God's way in obedience to His law, he taught his children how to do that, and because his children did that. So you are interpreting Galatians 3:19-25 in a manner that is contrary receiving the Gospel of Christ in accordance with Galatians 3:26-29.
God's law is God's word and Jesus is God's word made flesh, so us embodying God's word by living in obedience to it through faith is the way to receive the one who is the embodiment of God's word, which is why God's word leads us to him, and it is absurd to think that the way to receive the one who is the embodiment of God's word is by rejecting God's word. The only way that God's word can be temporary is is God's word made flesh is also temporary, but the sum of God's word is truth and all of God's righteous laws are eternal (Psalms 119:160).
Both the king of Ai and Jesus Christ were crucified for their wickedness, i.e., their breaching of the law as perceived by the priests.
Again, the Bible says that God commanded the destruction of Ai because of their wickedness, but regardless of who was doing the judging, the people of Ai were extremely wicked, so the people who judged them were acting justly, while Jesus was not wicked, so the people who judged him were acting unjustly.
That's not what I said. I argued that Gentiles are doers of the natural law, but have never been under the Mosaic law. The natural law has much in common with the Mosaic law, and that's why Paul finds that Gentiles are sometimes doing better than the followers of the Mosaic law.
I don't see any grounds for thinking that Romans 2 refers to obeying something other than the Law of Moses, for example:
Romans 2:25-25 Circumcision has value if you observe the law,but if you break the law, you have become as though you had not been circumcised. 26 So then, if those who are not circumcised keep the laws requirements, will they not be regarded as though they were circumcised? 27 The one who is not circumcised physically and yet obeys the law will condemn you who, even though you have the written code and circumcision, are a lawbreaker.
Being circumcised/having a circumcised heart is directly connected with living in obedience to the Law of Moses, so Gentiles keeping the requirements of the law is clearly speaking about Gentiles living in obedience to the Law of Moses and there would be no reason to regard them as though they were circumcised is they were doing something other than or contrary to the Law of Moses. Likewise, if Gentiles weren't keeping the Mosaic Law, then there would no reason to think that they were condemning Jews who weren't keeping it. In addition, both natural law and the Law of Moses are based on God's image, so I don't see any reason to think that following one is good while following the other is bad or to think that they are different or contrary to each other to any extent.
This is what Luther is saying, as I've already explained. Luther learnt from Paul, who says: "For the law brings wrath, but where there is no law there is no transgression" (Romans 4:15). Thus, God's divine will, equal to the divine law, is received as devilish wrath: "God can be found only in suffering and the cross" (LW 31: 53). In order to bring to heal the sinful condition, God's divine law exacerbates egocentrism, pushing the human subject deeper into sin. In the typical case, the sinner must be driven into despair before he can come to faith and take the Gospel to heart. See, for instance, von Loewenich, Luther’s Theology of the Cross (1976).
What Paul delights in is the very same law that pushes him into sin. It's the very same force. He explains that, without knowledge of the law and what is good and evil, he wouldn't know sin (Romans 7:7). It's the same thing that happens with Adam and Eve in the Garden. When they become aware of good and evil, they immediately suffer the fall from grace. They realize that they live in sin and become ashamed of themselves (Genesis 3:8-11). Their eyes are opened to what is called the natural law, or the law of the heart. If you know 'good' then you know that you're a sinner.
It's the same God who is behind the darkness of human existence. Luther explains that God becomes visible precisely in the things that we perceive as other than the divine, such as misery, weakness and strife. He says that "it could never be enough for a man, nor could it benefit him to know God in his glory and majesty unless he knows him at the same time in the humility and shame of the cross" (The Heidelberg Disputation XX). God is behind the suffering of his Son. God is behind Paul's suffering, although he experiences it as the workings of the devil. It's because God takes the devil into his service: "as the devil is working his damnedest against the work of God, he is by dint of his own work but working against himself and forwarding God's work" (LW 29).
If Luther was saying that the God oppresses us by giving us a law that He said was given for our own good, then he was committing blasphemy against God, which is contrary to what Paul taught. It is not obeying the Law of God that brings wrath, but refusing to obey it, so what oppresses us the opposite of the Law of God. In Psalms 119:142, the Law of God is truth, and in John 8:31-36, it is sin in transgression of the Law of God that puts us on bondage while it is the truth that sets us free. Furthermore, your posts in this thread are opposed to following truth.
A law that exacerbates sin is a law that is sinful, however, Romans 7:7 says that the Law of God is not sinful, but is how we know what sin is, so he was contrasting the law that is sinful with the law that is how we know what sin is, yet you keep making the error of conflating them by mistaking what Paul said about the law of sin and attributing it to the Law of God. For example, there is nothing innate to the command not to covet that causes coveting to increase, but rather he said that the law that was causing sin to increase was within him. The command against coveting leads us to refrain from coveting, which causes sin to decrease, so Paul did not say Law of God causes coveting to increase, but rather he said that it is the law of sin working through the Law of God that causes coveting to increase.
It is absurd to think that Paul delighted in being pushed to sin, but rather he despaired that he was being pushed to sin when he wanted to obey the Law of God, so I don't see how you can read Romans 7:21-25 and think that Paul speaking about another law that was waging war against the law of his mind is the same as the law. You keep ignoring that Paul contrasted the Law of God that he served with his mind with the law of sin that he served with his flesh, so you can keep insisting that is is the same law, but not without being contrary to what he said.