Luke 18:1-8 tells the parable of the persistent widow, directly reinforcing the same lesson: shameless persistence moves even an unjust judge.

Luke 18:5 features the persistent widow who wears down the unjust judge — a direct parallel to the friend's bold persistence here.

In Genesis 32:26, Jacob refuses to let go until blessed—a clear parallel to the persistent friend who keeps asking until he receives.

Matthew 15:22-28 shows the Canaanite woman persisting despite refusal, echoing the same boldness that finally gets a response.

In 2 Corinthians 12:8, Paul pleads three times for his thorn to be removed—a direct example of persistent prayer like the friend's repeated knocking.

Colossians 4:12 says Epaphras always struggles in prayers—a clear example of persistent intercession as in the parable.

Genesis 18:32 shows Abraham persistently bargaining with God for Sodom—another case of shameless persistence that obtains a response.

In Genesis 19:21, God grants Lot's persistent plea to spare Zoar — showing that importunity wins a favorable response, as in Luke.

In 1 Samuel 1:12, Hannah continues praying persistently before the Lord — a direct example of the importunate prayer Jesus commends.

In Psalm 86:3, the psalmist calls on God all day long — a model of persistent prayer consistent with Luke's lesson.

In 1 Kings 18:37, Elijah cries 'Answer me, O Lord' — a persistent plea for divine response, echoing the importunity theme.

Matthew 21:22 links asking with faith — a complementary condition to the persistence emphasized in this parable.

Romans 15:30 urges striving together in prayer—a broader call to persistent intercession that parallels the friend's determined asking.