Greetings Maco,
I know the following is lengthy, but if you follow the train of thought this would put away all questions regarding the "added" law for all.
This of course is the moral law as you state. How could the ceremonial law be "added"? It was present when the skins were placed upon Adam and Eve. The offering of Abel was the remedial (ceremonial) law, if you will. It certainly was not put off until the Exodus. It existed since the conception of the sin of Adam and Eve.
Furthermore, the word "added" does not mean 1 + 1 in the sense we normally think it means. The law was "added" in Deut. 5:5-21 in the giving of the commandments.
Moses says in the 22nd verse, "These words the Lord spake unto all your assembly in the mount out of the midst of the fire, of the cloud, and of the thick darkness, with a great voice; and he ADDED nor more."
The following would solve all the problems of the "added" law, once and for all, if people were to be honest in conviction and sincerity.
"The term “added,” in this verse, is in the Septuagint exactly the same as that rendered “added” in Galatians 3:19. The Hebrew word is the same that is rendered “add” in Genesis 30:24. That it has unmistakable reference in Deuteronomy 5:22 to the moral law, and to that alone, no one can deny. I care not whether you render it “added,” “spoken,” or “promulgated’‘—it makes no difference.
In Hebrews 12:18, 19 we have unmistakable reference to the voice of God speaking the law from Sinai, and the request of the people that God should not speak to them any more (Exodus 20:18, 19), in the words, “which voice they that heard entreated that the word should not be spoken to them any more.” Here the word rendered “spoken” is the same as that rendered “added” in Galatians 3:19 and Deuteronomy 5:22.
If we chose we might render it, “they entreated that the word should not be added to them any more,” and then we would have a uniform rendering. Or we might render it uniformly “spoken,” and then we would read in Deuteronomy that the Lord spoke all those words in the mount, out of the midst of the fire, etc., with a great voice, “and He spoke no more;” and this would be the exact truth and a good rendering. And likewise for uniformity we might justly render Galatians 5:19, “it was spoken because of transgressions.”
Or we might take the word in Deuteronomy 5:22 in the same sense in which it is used in Genesis 30:24, and the same idea would appear. When Rachel said, “God shall add to me another son,” it was the same as though she had said, “God will give me another son.” So the meaning in Deuteronomy 5:22 is that after the Lord had given them the commandments recorded in the preceding verses, He gave them no more. It seems to me very reasonable to apply the term “added” to the moral law; and whether it is reasonable or not I have certainly quoted two texts besides Galatians 3:19 which apply it so.
But you cannot find in the Bible a single instance of the use of the word “added,” as applied to the ceremonial law, to substantiate your view on Galatians 3:19. Deuteronomy 5:22 plainly says that the ten commandments were spoken by the Lord, and that nothing but the ten commandments was spoken, or given, or “added.”
Galatians 3:19 tells us why they were spoken. It was because of transgressions; that is, because people were largely ignorant, of the law. We may not play upon the word “added,” and use it in a mathematical sense, but must necessarily use it in the sense of declaring or speaking. There was no more moral law after God spoke it from Sinai than there was before, but it was certainly known a great deal better than it was before, and there was less excuse for sin than there was before."
The Gospel in Galatians by E. J. Waggoner
Jake