There is much mixing and saying much without any proof, and telling things like a statement, when it is obviously wrong, but saying all that as if it is the truth.
I shall make many replies; because you spoke much in a way of confounding the second person:
The Ten Commandments as a whole is a light to humanity, a favor and grace from God.
You claim Moses – peace be on him – took them from the Egyptians; this is not correct; they were inscribed by God Himself on the tablets of stone, with the letters protruding (or projecting or bulging out) of the stone tablets, and emitting light: no one see them would doubt they were written by God – be glorified.
But Prophet Moses was nervous and hasty [his nature or personality was like that] and had a rapid reaction; and because of his sorrow when he saw his people fell in the idolatry and associating the calf with God, he threw the tablets on the ground violently, and the tablets were broken up. Then he prayed God to give him other two tablets, but God ordered him to copy them on the parchment.
This is in the Quran 7: 150, 154
وَلَمَّا رَجَعَ مُوسَى إِلَى قَوْمِهِ غَضْبَانَ أَسِفًا قَالَ بِئْسَمَا خَلَفْتُمُونِي مِن بَعْدِيَ أَعَجِلْتُمْ أَمْرَ رَبِّكُمْ وَأَلْقَى الألْوَاحَ وَأَخَذَ بِرَأْسِ أَخِيهِ يَجُرُّهُ إِلَيْهِ ...
وَلَمَّا سَكَتَ عَن مُّوسَى الْغَضَبُ أَخَذَ الأَلْوَاحَ وَفِي نُسْخَتِهَا هُدًى وَرَحْمَةٌ لِّلَّذِينَ هُمْ لِرَبِّهِمْ يَرْهَبُونَ
The explanation: (150 – And when Moses returned to his people, being angry and sorrowful, he said: " Evil is that which you have done in my absence. Would you hasten on the commandment of your Lord?" And he cast down the tablets, and held his brother's head dragging him toward him…)
(154 - When the anger of Moses was appeased, he took up the broken Tablets: in the copy of [the writing thereon] was guidance and mercy for such as fear their Lord [so much.] )
- Even though you say they were taken from the Egyptians [and in fact they were not]; the Ten Commandments are excellent and full of wisdom; and none may deny this unless he has no sound judgment, or has some purpose within himself.
- Moreover, Moses did not need to take such commandments from the Egyptians; his fathers were prophets: Abraham, Isaac, Jacob and his twelve sons including Prophet Joseph. They had the papers of Abraham including valuable instruction and principal teachings; some of such teachings were later on included in the Book of Genesis.
- In addition, God – be glorified – sent a large number of apostles to all nations; each apostle came speaking the same language of his people; but after time would pass, such revelations to those apostles would be distorted in a way or another; this may have led to appearance in many civilizations and cultures of many similar things; because from the time of Adam the apostles and prophets did not stop to come in a series of prophets and apostles to guide mankind.
This is in the Quran 4: 164-166
وَرُسُلاً قَدْ قَصَصْنَاهُمْ عَلَيْكَ مِن قَبْلُ وَرُسُلاً لَّمْ نَقْصُصْهُمْ عَلَيْكَ وَكَلَّمَ اللّهُ مُوسَى تَكْلِيمًا . رُّسُلاً مُّبَشِّرِينَ وَمُنذِرِينَ لِئَلاَّ يَكُونَ لِلنَّاسِ عَلَى اللّهِ حُجَّةٌ بَعْدَ الرُّسُلِ وَكَانَ اللّهُ عَزِيزًا حَكِيمًا . لَّـكِنِ اللّهُ يَشْهَدُ بِمَا أَنزَلَ إِلَيْكَ أَنزَلَهُ بِعِلْمِهِ وَالْمَلآئِكَةُ يَشْهَدُونَ وَكَفَى بِاللّهِ شَهِيدًا
The explanation: (And messengers We mentioned to you [Mohammed] before and messengers We have not mentioned to you – But Moses did God speak to with an [audible] speech.
Apostles [: messengers] that were: bearers of glad tidings, and warners; that men should have no argument against God, after [sending] the apostles; God is All-Mighty, Most Wise.
But God bears witness [for you, Mohammed,] to what He has revealed to you: He has revealed it with His knowledge, and the angels also bear witness [for you]; though God suffices as a Witness.)