Hello,
In Deuteronomy 5:31-33, Moses wrote down everything that God commanded him without departed from it, so all of the Mosaic Law was given by God and it is called the Mosaic Law only because Moses played the role of the mediator in communicating God's laws to the Israelites. Likewise, God's law and the Mosaic Law are equated in Nehemiah 8:1-8, Ezra 7:6-12, and Luke 2:22-23.
The Bible never uses the subcategory of ceremonial laws. Jesus lived in sinless obedience to the Mosaic Law and he did not hypocritically preach something other than what he practiced. Morality is in regard to what we ought to do and we ought to obey God, so all of God's laws are inherently moral laws and there are no examples of disobedience to any of the laws given in the OT being considered to be moral. If a spiritual lesson has no literal application, then it does not actually teach us anything about reality, and is therefore worthless.
In Deuteronomy 4:2, it is a sin to add to or subtract from the law, therefore he never tried to change or contradict the Mosaic Law, and if he had tried to do that, then he would have sinned and therefore disqualified himself from being our Savior. If Jesus had tried to make any changes, then he would have been in disagreement with the Father, and I see no indication of this. On the contrary, in John 14:23-24, Jesus said that if we love him, then we will obey his teachings, if we don't love him, then we will not obey his teachings, and that his teachings were not his own, but that of the Father, so he did not teach any changes to God's eternal law, and if we love him, then we will obey what the Father has taught. However, he did fulfill the law by correcting what was wrongly being taught about it and by teaching how to correctly obey it as it was originally intended.
The Psalms express an extremely positive view of the Mosaic Law, such as with David repeatedly saying that he loved it and delighted in obeying it. For example, in Psalms 1:1-2, blessed are those who delight in the law of the Lord and who meditate on it day and night. If we believe that the Psalms are Scripture and therefore express a correct view of the Mosaic Law, then we will therefore share it and consider anything less than delighting in obeying the Mosaic Law to be incompatible with the view that the Psalms are Scripture. In Romans 7:22, Paul also delighted in obeying the Mosaic Law, so he was on the same page as David.