Luke 2:37

and she a widow of about fourscore years, who did not depart from the temple, worshiping night and day with fastings and prayers.

Luke 11:8-13

I say unto you, If indeed having risen he will not give unto him, because he is his friend, yet on account of his shamelessness, rising he will give him as much as he needs.

Luke 18:7

And shall not God avenge His elect, crying to Him day and night, and He is long-suffering over them?

Ephesians 6:18

praying with all prayer and supplication in the Spirit in every place, and watching unto this same thing in all perseverance and prayer for all the saints,

Treasury of Scripture Knowledge

Summary

Be merciful unto me, O Lord: for I cry unto thee daily.

Bible References

For i

Luke 2:37
and she a widow of about fourscore years, who did not depart from the temple, worshiping night and day with fastings and prayers.
Luke 11:8
I say unto you, If indeed having risen he will not give unto him, because he is his friend, yet on account of his shamelessness, rising he will give him as much as he needs.
Luke 18:7
And shall not God avenge His elect, crying to Him day and night, and He is long-suffering over them?
Ephesians 6:18
praying with all prayer and supplication in the Spirit in every place, and watching unto this same thing in all perseverance and prayer for all the saints,