Luke 18:1-7
And he spoke a parable to them to show that they ought to pray always, and not be fainthearted:
Luke 24:28-29
And they drew near to the village whither they were going; and he made as though he would go further.
Romans 8:37
Nay, in all these things we are more than conquerors, through him that loved us.
1 Corinthians 15:58
Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, since ye know that your labor is not in vain in the Lord.
2 Corinthians 12:8-9
In respect to this I besought the Lord thrice, that it might depart from me;
Hebrews 5:7
Who in the days of his flesh, when he had offered up prayers and supplications, with strong crying and tears, to him that was able to save him from death, and was heard by reason of his godly reverence,