Luke 1:4

1:4 so that you may know for certain the things you were taught.

Luke 18:18

The Wealthy Ruler

18:18 Now a certain ruler asked him, “Good teacher, what must I do to inherit eternal life?”

Luke 7:41

7:41 “A certain creditor had two debtors; one owed him five hundred silver coins, and the other fifty.

Luke 12:16

12:16 He then told them a parable: “The land of a certain rich man produced an abundant crop,

Luke 18:2

18:2 He said, “In a certain city there was a judge who neither feared God nor respected people.