Leviticus 26 Way back in Exodus 20, we learned that God alone is to be worshiped. Because the Israelites had lived 430 yrs. in Egypt, they had witnessed pagan idolatry in carved images, sacred pillars, or engraved stones crafted to represent a god, but God is different. Instead of recalling the miracle of the plagues and the Red Sea crossing, they crafted a golden calf and called it god. But God, Jehovah, Yahweh is not contained in any of those. In Egypt, the various priests used incantations and other means to get the messages but no longer. Now Moses would be their intermediary, and Aaron, the high priest.
As Moses closes the book of Leviticus, he returns to the words of Exodus 20. They were not to have many places of worship but only one; the Tabernacle. They were to learn and obey the Ten Commandments. They were to observe the Sabbath and recall His provision for them. That is how God would bless them.
Just as back in Exodus and Leviticus, we don’t need crafted images; we have the breathed-out scripture, which is profitable for teaching, reproof, correction, and training in righteousness. [2Tim 3:16] It tells us all we need to know about how to worship Him alone and receive His blessings.