Luke 2:37

and has been a widow [all these years], and is now eighty-four years old.) She has never left the Temple, but worships [God] by fasting [i.e., going without food and/or water for religious reasons] and praying night and day.

1 Timothy 5:5

Now the woman who is a true widow, and living all alone, has placed her hope in God and continues [to offer] special requests and prayers [for help ?] night and day.

Acts 14:23

And when Paul and Barnabas had appointed elders [for the churches] in every congregation and had prayed and fasted [over these elders], they committed them to [the care of] the Lord, in whom they had come to trust.

Luke 5:33

Then they said to Jesus, "John [the Immerser's] disciples fast frequently [i.e., going without food and/or drink for religious reasons] and they offer earnest prayer requests, and the disciples of the Pharisees do the same things. But your disciples eat and drink."

Acts 13:3

Then, as these prophets and teachers fasted and prayed [for the two men], they placed their hands on them [signifying their appointment for this ministry] and sent them away.

Acts 26:7

This is the promise our twelve tribes [i.e., family groups], who earnestly serve God night and day, hope to see fulfilled. It is because [I advocate] this hope, O King, that I am being charged [with wrongdoing] by the Jews.

Revelation 3:12

I will make the person who has victory [in the Christian life] a pillar in the Temple of my God [i.e., probably a reference to heaven], and he will never leave it. And I will write on him the name of my God, the name of the city of my God, the new Jerusalem which is coming down from heaven from my God [See 21:2, 10] and my own new name.

Revelation 7:15

So, [now] they are in front of God's throne and they are serving Him day and night in His Temple. And He who sits on His throne will spread His tent over them [i.e., He will protect them].

Treasury of Scripture Knowledge

Summary

And she was a widow of about fourscore and four years, which departed not from the temple, but served God with fastings and prayers night and day.

Bible References

But

Acts 26:7
This is the promise our twelve tribes [i.e., family groups], who earnestly serve God night and day, hope to see fulfilled. It is because [I advocate] this hope, O King, that I am being charged [with wrongdoing] by the Jews.
1 Timothy 5:5
Now the woman who is a true widow, and living all alone, has placed her hope in God and continues [to offer] special requests and prayers [for help ?] night and day.
Revelation 7:15
So, [now] they are in front of God's throne and they are serving Him day and night in His Temple. And He who sits on His throne will spread His tent over them [i.e., He will protect them].