The land will give its fruit so that you can eat your fill and live securely on it.
Suppose you ask, "What will we eat in the seventh year if we don't plant or gather our crops then?"
I will send my blessing on you in the sixth year so that it will make enough produce for three years.
You can plant again in the eighth year and eat food from the previous year's produce until the ninth year. Until its produce comes, you will eat the food from the previous year.