Ephesians 6:18

18 Pray in the Spirit at all times in every prayer and supplication. To that end keep alert and always persevere in supplication for all the saints.

Ephesians 6:18 In-Context

16 With all of these, take the shield of faith, with which you will be able to quench all the flaming arrows of the evil one.
17 Take the helmet of salvation, and the sword of the Spirit, which is the word of God.
18 Pray in the Spirit at all times in every prayer and supplication. To that end keep alert and always persevere in supplication for all the saints.
19 Pray also for me, so that when I speak, a message may be given to me to make known with boldness the mystery of the gospel,
20 for which I am an ambassador in chains. Pray that I may declare it boldly, as I must speak.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.