Luke 18:7

And will not God avenge his chosen, who cry to him day and night, though he be slow to punish in their behalf?

Matthew 26:44

And leaving them, he went away again, and prayed the third time, saying again the same words.

Luke 6:12

And it came to pass in those days, that he went out into the mountain to pray; and he continued all night in prayer to God.

Luke 22:41-46

And he withdrew from them about a stones throw; and kneeling down he prayed,

1 Thessalonians 3:10

night and day praying exceedingly that we may see your face, and may supply that which is lacking in your faith?

2 Timothy 1:3

I thank God, whom I serve from my forefathers with pure conscience, as without ceasing I have remembrance of thee in my prayers night and day,

Treasury of Scripture Knowledge

Summary

O my God, I cry in the daytime, but thou hearest not; and in the night season, and am not silent.

Am not silent

Bible References

In the night

Luke 6:12
And it came to pass in those days, that he went out into the mountain to pray; and he continued all night in prayer to God.
Luke 18:7
And will not God avenge his chosen, who cry to him day and night, though he be slow to punish in their behalf?
Luke 22:41
And he withdrew from them about a stones throw; and kneeling down he prayed,

Am not silent

Matthew 26:44
And leaving them, he went away again, and prayed the third time, saying again the same words.