Luke 2:37

2:37 She had lived as a widow since then for eighty-four years. She never left the temple, worshiping with fasting and prayer night and day.

Luke 18:1

Prayer and the Parable of the Persistent Widow

18:1 Then Jesus told them a parable to show them they should always pray and not lose heart.

Luke 18:7

18:7 Won’t God give justice to his chosen ones, who cry out to him day and night? Will he delay long to help them?

Acts 26:7

26:7 a promise that our twelve tribes hope to attain as they earnestly serve God night and day. Concerning this hope the Jews are accusing me, Your Majesty!

Ephesians 6:18

6:18 With every prayer and petition, pray at all times in the Spirit, and to this end be alert, with all perseverance and requests for all the saints.