Moses comes out from the mountains, holding the two tablets God gave him, with the 10 commandments written on them. The tablets were made by God, and the writing was done by God.
Moses sees the people worshiping the Golden Calf, and he smashes the tablets.
Moses realized the people were not ready for the tablets, they were not ready to keep the commandments, and giving the people the tablets would put them in danger for not obeying the laws of God.
Jews are the people who will sometime smash the Divine Torah, in order to protect our people. People are more important!