"Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God." Philippians 4:6.
"Pray without ceasing. 1 Thessalonians 5:17.
"Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints." Ephesians 6:18.
"Continue in prayer, and watch in the same with thanksgiving." Colossians 4:2.