Genesis 10:25 expands on Eber's sons Peleg and Joktan, directly continuing the genealogy of the children of Eber mentioned here.

Genesis 10:2 lists the sons of Japheth, providing context for 10:21 which identifies Shem as Japheth's elder brother.

Genesis 9:26 records Noah blessing the God of Shem, a blessing that underlies the prominence of Shem's line introduced in 10:21.

Genesis 11:10-26 continues the genealogy from Shem down to Terah, fleshing out the descendants of the Shem mentioned in 10:21.

Genesis 5:32 records the birth of Shem to Noah, the starting point for the genealogy of Shem's descendants given in 10:21.

Genesis 7:13 names Shem as one of Noah's sons entering the ark, a earlier event in the life of the same Shem whose line is traced in 10:21.

Genesis 11:16 gives the specific age when Eber fathered Peleg, adding detail to the general statement about Eber's line.

1 Chronicles 1:19 repeats verbatim the same statement about Eber's two sons, confirming this genealogical record.

Numbers 24:24 prophesies that ships from Kittim will afflict Eber, linking to 10:21 where Shem is called father of all children of Eber.

Luke 3:36 includes Shem in Jesus' genealogy, tracing the line back to the same patriarch named here.