The Tabernacle
God spends from Exodus chapters 25 to 32 giving the exact details of how the Tabernacle is to be built, how all the furniture is to be made, and what materials to use. God supplied Moses with men who had certain skills to be able to do all manner of workmanship. He tells Moses who the priests will be and even how they should dress and act.
God shows us that the smallest of details matter to Him. The priest's garments were made specifically to consecrate him for the service of God. When the priest put on his garments there was no question as to what he was about to do. God also sets the precedence that He grants skills and wisdom to those He calls to minister to His people.
God explains what He finds acceptable and how He should not be worshipped.
God did not allow the Israelites to worship Him in the same manner the Canaanites worshiped their idol gods. God considered the ceremonies and the things they did to be an abomination. Be careful to make sure that God approves of what you call worship.