1 John 5:14.
"Rejoice evermore. Pray without ceasing. In every thing give thanks: for this is the will of God in Christ Jesus concerning you."
1 Thessalonians 5:16-18.
"Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus."
"Continue in prayer, and watch in the same with thanksgiving."
"Then shall ye call upon me, and ye shall go and pray unto me, and I will hearken unto you."
"The Lord is nigh unto all them that call upon him, to all that call upon him in truth."