for his sister # 10_2SA_13_02 # And Amnon was so vexed, that he fell sick for his sister Tamar; for she [was] a virgin; and Amnon thought it hard for him to do any thing to her. 
for his sister # 03_LEV_21_03 # And for his sister a virgin, that is nigh unto him, which hath had no husband; for her may he be defiled. 
for his sister # 04_NUM_06_07 # He shall not make himself unclean for his father, or for his mother, for his brother, or for his sister, when they die: because the consecration of his God [is] upon his head.