Prayer is an act of obedience
God commands us to pray.
"And pray in the Spirit on all occasions with all kinds of prayers and requests."
“Do not be anxious about anything, but in everything, by prayer and petition, with thanksgiving, present your requests to God.” -Philippians 4:6
"Devote yourselves to prayer, being watchful and thankful." -Colossians 4:2
"Pray Continually" -1 Thessalonians 5:17