Luke 11:8-10
I tell you, though he will not rise and give him,
Luke 18:1
And he spake a parable to them to this end, that they ought always to pray, and not to faint;
Ephesians 6:18
which is the word of God, Praying alway by the Spirit with all prayer and supplication, and watching thereunto with all perseverance and supplication for all the saints,
Colossians 4:2
Continue in prayer, and watch therein with thanksgiving:
1 Thessalonians 5:17
Pray without ceasing: In every thing give thanks;
James 5:16
Confess your faults one to another, brethren, and pray one for another, that ye may be healed: the fervent prayer of a righteous man availeth much.