Luke 18:1
And he spoke a parable to them, that they ought always to pray, and not to become weary,
Colossians 4:2
Persevere in prayer, and be watchful in the same with thanksgiving;
Romans 12:12
in hope, be joyful; in affliction, be patient; in prayer, be per severing;
Ephesians 6:18
praying with all prayer and supplication, at all times, in the Spirit; and to this end being watchful in all perseverance, and supplication for all the saints:
1 Thessalonians 5:17
pray without ceasing;
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:
Luke 21:36
Watch, therefore, and pray at all times, that you may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.
Luke 11:5-9
And he said to them: Which of you shall have a friend, and shall go to him at midnight, and say to him, Friend, lend me three loaves;
2 Corinthians 4:1
Wherefore, having this ministry, inasmuch as we have received mercy, we faint not;
Galatians 6:9
Let us not become weary in well doing: for in due season we shall reap, if we faint not.
Colossians 4:12
Epaphras, who is one of you, a servant of Christ, salutes you; he always strives earnestly for you in his prayers, that you may stand perfect and complete in all the will of God.
Hebrews 12:3-5
For consider him that endured such opposition of sinners against himself, lest you become weary and despondent in your minds.