Acts.20.31  Therefore be alert, remembering that for three years I did not cease night or day to admonish every one with tears.
Eph.6.18  Pray at all times in the Spirit, with all prayer and supplication. To that end keep alert with all perseverance, making supplication for all the saints,

Hyper-concordance v1.1, by Sean Boisen. Scripture verses taken from the Revised Standard Version, copyright 1952, 1971.