And he spake a parable unto them to this end, that men ought always to pray, and not to faint. Luke 18:1 KJV
 

Pray without ceasing. 1 Thess. 5:17 KJV

 

Confess your faults one to another, and pray one for another, that ye may be healed. The effectual fervent prayer of a righteous man availeth much. James 5:16 KJV