9 responses to teens, "if God already knows everything, why do we have to pray?"

"Your Father knows what you need before you ask him.” —Matthew 6:8

•  #9. Prayer is relationship. God’s omniscience does not replace intimacy. Prayer is communion for us and from us.

“God thirsts that we may thirst for Him.” —St. Augustine

• #8. Prayer changes us, not God. Sharing changes the sharer. Prayer is not information. Prayer is transformation.

“Prayer is the raising of one’s mind and heart to God.” —CCC 2559

“Prayer is an intimate sharing between friends.” —St. Teresa of Avila

• #7. Prayer is participation in God’s work.  To know God's plan for us, we must first discern it. 

“We are God’s co-workers.” 1 Corinthians 3:9

God wills both the gift and the asking. —St. Thomas Aquinas

• #6. Prayer strengthens trust. Surrender is a contract, spoken through prayer.

“Cast your cares upon the Lord, and He will sustain you.” —Psalm 55:23

“The measure of love, is to love without measure.” —St. Francis de Sales

• #5. Prayer aligns us with God’s will. Prayer leads to a profound spiritual and moral change, where a believer’s heart, mind, soul and life are renewed in a way that aligns with God’s will. Jesus prayed constantly—even though He is God.

“Not my will but yours be done.” —Luke 22:42

“Prayer prepares us to receive God’s will.” —St. Ignatius of Loyola

• #4. Prayer releases grace which flows through prayer like breath through lungs.

“The oxygen of the soul.” — St. Padre Pio

• #3. Prayer is freedom. Prayer is evidence of our “yes” to graces. St Augustine’s own spiritual journey shows how prayer frees the soul from fear, doubt, and bondage to sin. In Confessions he describes his struggles, but through persistent prayer, repentance and union with God; he found peace. For St Augustine, prayer was a transformative encounter that reshaped his will and heart. He is the saint most associated with freedom through prayer, as his witness shows how it removed attachments, shame, guilt and led to peace.

   "Grant us so to know you, that we may love you, & to love you, so that we may fully serve you; & to serve you to bring perfect freedom” --St Augustine

•  #2. Prayer is love returned. Ask any wife or middle child. Love unspoken is love incomplete.

“Prayer is a way we speak to God with the affection of our hearts.” —St. Catherine of Siena

• #1. God knows — but He wants our voice. Prayer is relationship, transformation, cooperation, trust, alignment, grace, freedom and love. God knows our needs — but He thirsts for our voiced love. He even said so. Metaphorical words from Jesus on the cross were ... “I thirst.”

Prayer

Lord, You know our heart’s desire yet call to us to speak our ire.
Not-to-inform Your perfect sight but shape our souls in truth and light.
You know our fears before they rise, yet request we lift them to the skies.

For when we put them in Your hands, our worry learns to trust Your plans.
You know our wounds, our hidden aches, yet want our voice for mercy’s sake.
For prayer becomes the healing breath, that draws us back from inner death.

You know our path, the steps we take, yet urge our virtue to awake.
For when we choose Your will each day, our wandering souls learn how to pray.
You know our love, though faint and small, yet ask we offer You our all.

So let our prayer, though faint and weak, be our “yes” to eternity.

Sources

Aquinas, T. Summa Theologiae. English Dominican Province translation.

Arinze, P. (2026, August 16). 20th week in ordinary time, year A cycle. Unpublished homily.

Augustine. Confessions | The Project Gutenberg eBook.

Catechism of the Catholic Church. USCCB

Ignatius of Loyola. Spiritual Exercises. | Fisheaters.com

Teresa of Avila. The Book of Her Life. | PrayingWithTeresaOfAvila.com

USCCB. New American Bible, Revised Edition (NABRE).