"A person sins against the LORD by acting treacherously toward his neighbor regarding something entrusted to his care, regarding security for a loan, robbery, if he has oppressed his neighbor,

If, in his opinion, the scab remained the same and a black hair grew in it, then the scab has healed. He's clean. The priest is to declare him clean.

"Whenever a bull, a sheep, or a goat is born, it is to remain for seven days under the care of its mother. But on the eighth day onwards, it may be accepted as an offering made by fire to the LORD.

The fiftieth year is to be a year of jubilee for you. You are not to sow or harvest the spilled kernels that grow of themselves or pick grapes from the untrimmed vines