"Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them." Matthew 7:7.
"And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight." 1 John 3:22.
"Pray without ceasing." 1 Thessalonians 5:17.
"And he spake a parable unto them to this end, that men ought always to pray, and not to faint" Luke 18:1.