Jesus also commonly (15× in the gospels) uses groups of five in his parables and sayings, such as five foolish and five wise virgins (Mt 25:2), five talents (Mt 25:15, 16, 20), five sparrows (Lk 12:6)

Jesus also commonly (15× in the gospels) uses groups of five in his parables and sayings, such as five foolish and five wise virgins (Mt 25:2), five talents (Mt 25:15, 16, 20), five sparrows (Lk 12:6), a family of five (Lk 12:52), five yoke of oxen (Lk 14:19), and five brothers (Lk 16:28). (2) Jesus points out that the smallest details of what happens on this earth, such as what happens to two sparrows, is “not forgotten by God” (Lk 12:6). The NT depicts people who sell sparrows (Mt. 10:29; Lk. 12:6), oil (Mt. 25:9), cattle, sheep, and doves (Jn. 2:14), real estate (Acts 4:37; 5:1), and meat (1 Cor. 10:25). Two pennies can buy five sparrows (Lk. 12:6). a sparrow, Mt. 10:29, 31; Lk. 12:6, 7* [4765]

William D. Mounce, Mounce’s Complete Expository Dictionary of Old & New Testament Words (Grand Rapids, MI: Zondervan, 2006), 257.

BDAG page 426