Pray in the Spirit at all times, with every kind of prayer and petition. To this end, stay alert with all perseverance in your prayers for all the saints.
18. Praying always with all prayer. Having instructed the Ephesians to put on their armor, he now enjoins them to fight by prayer. This is the true method. To call upon God is the chief exercise of faith and hope; and it is in this way that we obtain from God every blessing.
Here is a general exhortation to constancy in our Christian course, and to encourage in our Christian warfare. Is not our life a warfare? It is so; for we struggle with the common calamities of human life. Is not our religion much more a warfare?
Commenting on Ephesians 6:10-18
Praying always with all prayer and supplication in the spirit,.... The last weapon is prayer, and takes in all sorts of prayer, mental and vocal, public and private; and every branch of it, as deprecation of evils, petitions for good things, and thanksgiving for mercies: and which should be used always: this stands opposed to such who pray not at all, or who have prayed...