Genesis 9:18-27, was used by some Christian Boers in South Africa to justify the enslavement of black people.

Genesis 9:18-27 (New International Version, ©2010)

The Sons of Noah

18 The sons of Noah who came out of the ark were Shem, Ham and Japheth. (Ham was the father of Canaan.) 19 These were the three sons of Noah, and from them came the people who were scattered over the whole earth.

20 Noah, a man of the soil, proceeded[a] to plant a vineyard. 21 When he drank some of its wine, he became drunk and lay uncovered inside his tent. 22 Ham, the father of Canaan, saw his father naked and told his two brothers outside. 23 But Shem and Japheth took a garment and laid it across their shoulders; then they walked in backward and covered their father’s naked body. Their faces were turned the other way so that they would not see their father naked.

24 When Noah awoke from his wine and found out what his youngest son had done to him, 25 he said,
“Cursed be Canaan!
The lowest of slaves
will he be to his brothers.”

26 He also said,

“Praise be to the LORD, the God of Shem!
May Canaan be the slave of Shem.
27 May God extend Japheth’s[b] territory;
may Japheth live in the tents of Shem,
and may Canaan be the slave of Japheth.”