Luke 18:1

And he spoke a parable to them, that they ought always to pray, and not to become weary,

Luke 18:7

and will not God avenge his elect, who cry to him day and night, though he delay long in respect to them?

Philippians 4:6-7

Be anxious about nothing, but in every thing, by prayer and supplication with thanksgiving, let your requests be made known to God:

Treasury of Scripture Knowledge

Summary

O LORD, to thee will I cry: for the fire hath devoured the pastures of the wilderness, and the flame hath burned all the trees of the field.

Bible References

To thee

Luke 18:1
And he spoke a parable to them, that they ought always to pray, and not to become weary,
Philippians 4:6
Be anxious about nothing, but in every thing, by prayer and supplication with thanksgiving, let your requests be made known to God: