Welcome To Knox Orthodox Presbyterian Church

At Knox, God is building a community of people who have experienced His love in Jesus and who are learning how to love and serve each other for Jesus’ sake.

We Invite You to Join Us!

9:30 AM-Catechism (All ages)

9:45 AM-Sunday School (All ages)

11:00 AM-Morning Worship

6:30 PM-Evening Worship

Sunday School and Sermon Series

Adult Sunday School

Beginning Sunday, July 12, 2026, the adult Sunday School class will begin viewing the video series Contending for the Faith – The Book of Jude by Rev. Jason Helopoulos. Though brief enough to read in just a few minutes, Jude’s epistle offers profound insights that are as relevant today as they were in his time. Confronted with false teaching and ungodliness, Jude sounded an alarm for the church, and his epistle provides practical lessons for standing firm in the truth and confronting falsehood without losing sight of mercy and love. In this teaching series, Rev. Jason Helopoulos explores the urgent…

Morning Sermon Series

Luke (12-13): Living By Faith – Following our series through the book of Habakkuk, we will return to the Gospel According to Luke in our morning series, beginning Lord’s Day August 09, 2026. Chapters 12–13 of Luke’s Gospel contain a section of Jesus’ teaching in which he instructs his disciples regarding the life lived by faith in Christ. Over the next fifteen Lord’s Days, we will meditate upon this teaching as we prayerfully seek the Holy Spirit’s grace for us to be those who hear and keep God’s word. 

Evening Sermon Series

Psalms 1 – 12 – Beginning May 17, and continuing through August, our evening sermons will explore Psalms 1 through 12. John Calvin considered the Book of Psalms to be “An Anatomy of all the Parts of the Soul”, explaining that, “there is not an emotion of which any one can be conscious that is not here represented as in a mirror. Or rather, the Holy Spirit has here drawn to the life all the griefs, sorrows, fears, doubts, hopes, cares, perplexities, in short, all the distracting emotions with which the minds of men are wont to be agitated”. (from…

Shorter Catechism


Study question for August 02, 2026
Q. 31
What is effectual calling?
A. 31
Effectual calling is the work of God’s Spirit, whereby, convincing us of our sin and misery, enlightening our minds in the knowledge of Christ, and renewing our wills, he doth persuade and enable us to embrace Jesus Christ, freely offered to us in the gospel.


The Westminster Shorter Catechism can be found on the OPC website.

Study question for August 09, 2026
Q. 32
What benefits do they that are effectually called partake of in this life?
A. 32
They that are effectually called do in this life partake of justification, adoption and sanctification, and the several benefits which in this life do either accompany or flow from them.

The Westminster Shorter Catechism can be found on the OPC website.

Reading Through The Bible

Week 32 August 02 – August 08

SundayThe Epistles2 Thessalonians
MondayThe LawLeviticus 25 – 27
Tuesday History1 Chronicles 1 – 4
WednesdayPsalmsPsalms 93 – 95
ThursdayPoetryProverbs 16
FridayThe ProphetsDaniel 1 – 6
SaturdayGospels & ActsJohn 3, 4

Services at 11:00 am and 6:30 pm

Sunday school at 9:45 am for all ages

410 Granville Dr.
Silver Spring, MD 20901
(301) 587-6637