He kept ALL of the Jewish laws, not only the ten commandments,...
Demonstrably incorrect. Jesus
repeatedly "breaks" the Law of Moses.
Just one example: Jesus declares, in direct contradiction to a whole section of the Law of Moses, that there are no "unclean" foods.
Again, I suggest you are listening to certain voices within Christendom who, for ultimately unBiblical reasons, believe that Jesus must have religiously (pun intended) followed the Law of Moses - otherwise He would be a sinner. And so these (again, well-intentioned) Christians come up with implausible ways to explain a number of texts where Jesus is clearly "challenging" the Law of Moses.
I am happy to give the relevant details about Jesus and the food laws, as well as other instances where Jesus "breaks" the Law of Moses.
I would hasten to add that this does not detract from His faithfulness to Judaism. Again, you need to be careful about the assumptions people bring to their arguments. With all due respect to those who cannot imagine how "breaking" the Law of Moses is faithful to Judaism, such actions are indeed consistent with Judaism if you accept the following two propositions:
1. The Law of Moses was never intended to be eternal;
2. God uses the Law of Moses in order to get to the cross.
If you accept these two things, one can coherently believe that Jesus remained faithful to Judaism, even though He declared the "end" of the Law of Moses.
I am happy to provide the details.