'Brother' in the Bible

The Lord said to Moses:“Tell your brother Aaron that he shall not enter at any time into the holy place inside the veil, before the mercy seat which is on the ark, or he will die; for I will appear in the cloud over the mercy seat.

You shall not uncover the nakedness of your father’s brother; you shall not approach his wife, she is your aunt.

except for his relatives who are nearest to him, his mother and his father and his son and his daughter and his brother,