Exodus 34:15 gives the same warning against making covenant with the land's inhabitants, directly paralleling the intermarriage prohibition in Deuteronomy 7:3.

In Exodus 34:16, the same prohibition against intermarriage with Canaanites appears, warning it will lead to idolatry.

Joshua 23:12 repeats this command, warning against intermarriage with the remaining nations after the conquest.

Joshua 23:13 adds the consequence: intermarriage will make those nations snares and traps, as foreseen here.

Judges 3:6 records Israel actually intermarrying with Canaanites, fulfilling the warning and leading to idolatry.

Judges 3:7 shows the result: they forgot God and served Baals, directly following the intermarriage in verse 6.

1 Kings 11:2 explicitly cites this command as the one Solomon violated by marrying foreign women who turned his heart.

Nehemiah 13:23-27 recounts intermarriage with Ashdodites, Ammonites, and Moabites, citing Solomon's sin as precedent.

Ezra 9:1 references this command, noting the people have not separated from foreign peoples as required.

Ezra 9:2 shows the violation: they intermarried, mixing the holy race with surrounding peoples.

2 Kings 8:18 shows King Jehoram marrying Ahab's daughter, leading to idolatry — a direct violation of the intermarriage ban.

Malachi 2:11 condemns marrying the daughter of a foreign god, directly echoing the prohibition of intermarriage with pagans.

Nehemiah 13:25 recounts Nehemiah rebuking and enforcing the ban on intermarriage, quoting the Deuteronomic command.

Nehemiah 10:30 records a covenant not to intermarry with peoples of the land, renewing the law from Deuteronomy 7:3.

Ezra 10:11 commands separation from foreign wives, reinforcing the Deuteronomic command against intermarriage.

Ezra 10:3 records a covenant to put away foreign wives, directly applying the prohibition from Deuteronomy 7:3.

Ezra 9:12 explicitly cites this command not to give daughters or take theirs, as Ezra confesses Israel's sin of mixed marriages.

2 Chronicles 22:3 traces Ahaziah's evil ways to his mother, Ahab's daughter — another negative example of intermarriage.

1 Kings 16:31 records Ahab marrying Jezebel the Zidonian—a direct violation of the command not to intermarry with Canaanites, leading to idolatry.

In Judges 14:3, Samson's parents object to his marrying a Philistine—a direct violation of the law against foreign marriages, illustrating the prohibition.

In Genesis 24:3, Abraham likewise forbids taking a Canaanite wife for Isaac—same prohibition against marrying the inhabitants of the land.

Paul applies this separation principle to believers and unbelievers, quoting 'touch not the unclean' from OT context.

1 Corinthians 7:39 instructs believers to marry 'only in the Lord,' applying the same principle of not marrying unbelievers.

In Genesis 34:9, Shechem proposes intermarriage with Jacob's family—the very kind of union Deuteronomy prohibits, showing the context.