Brother in Law
Deuteronomy 25:7 And if the man like not to take his brother's wife, then
let his brother's wife go up to the gate unto the elders, and say, My husband's
brother refuseth to raise up unto his brother a name in Israel, he will
not perform the duty of my husband's brother.
8 Then the elders of his city shall call him, and speak unto him: and if
he stand to it, and say, I like not to take her;
9 Then shall his brother's wife come unto him in the presence of the elders,
and loose his shoe from off his foot, and spit in his face, and shall answer
and say, So shall it be done unto that man that will not build up his brother's
house.
10 And his name shall be called in Israel, The house of him that hath his
shoe loosed.
http://www.learnbible.net/topical/