Luke 2:46

2:46 After three days they found him in the temple courts, sitting among the teachers, listening to them and asking them questions.

Luke 10:36

10:36 Which of these three do you think became a neighbor to the man who fell into the hands of the robbers?”

Luke 13:21

13:21 It is like yeast that a woman took and mixed with three measures of flour until all the dough had risen.”

Luke 22:34

22:34 Jesus replied, “I tell you, Peter, the rooster will not crow today until you have denied three times that you know me.”