What is Prayer? - Ephesians 6:16-18a

        In all circumstances take up the shield of faith, with which you can extinguish all the flaming darts of the evil one; and take the helmet of salvation, and the sword of the Spirit, which is the word of God, praying at all times in the Spirit...
(Ephesians 6:16-18a ESV)

Westminster Shorter Catechism #98

Q.  What is prayer?
A. Prayer is an offering up of our desires unto God, for things agreeable to his will, in the name of Christ, with confession of our sins, and thankful acknowledgment of his mercies.