We are Mitch and Sarah Marmelstein!

Welcome to our homepage! We’re thrilled you’re here to check out our ministry and blog, Faith in Action. We’re dedicated to living out Jesus’ teachings within Spirit-led community and actively partnering with others who share that vision. Whether you’re seeking encouragement, community, or opportunities to collaborate in ministry, we’re so grateful you found us. Feel free to look around, and if anything sparks your interest, please don’t hesitate to reach out! May the grace of the Lord Jesus Christ, the love of God, and the fellowship of the Holy Spirit be with you.

Latest Blog Posts

Speaking in Tongues

When the day of Pentecost arrived, the Jewish celebration marking the first annual wheat harvest, all the followers of Christ were gathered together in one place, just as Jesus had commanded before His ascension to Heaven. After spending time sitting, waiting, and...

Baptism

"You saved others, but you can't save yourself?!" The crowd gathered, violently shaking their fists at the cross, shouting, "If you’re really the Messiah of God, the Chosen One, the King of the Jews, then prove it!"  Blood trickling down his wilted head, Jesus of...

Enemies of Grace #8 Comparison

Running from his past, Jacob found himself in the faraway land of Haran, working for his uncle Laban. In exchange for Rachel, Laban's youngest daughter, Jacob committed to seven years of labor. Jacob, who had previously deceived his older brother Esau out of his...

Enemies of Grace #7 Conceit

Simon and Andrew toiled all night and caught nothing. As they cleaned their dirty, empty nets on the shore with the rising sun, embarrassment hit them. Not one fish was there to bring home for breakfast! “What was all that work for anyway?” they must have thought. It...

Enemies of Grace #6 Carnality

About 3000 years ago, there lived a man named Samson, an Israelite whom God blessed as the strongest man who ever lived. Israel, which had been doing what was evil in the sight of the Lord, had fallen out of divine protection into the hands of the Philistines, who...

Enemies of Grace #5 Control

This Good Friday morning, I read from the Gospels all the events that took place the day before the arrest and crucifixion of our Savior, Jesus Christ. Although I have read these portions of Scripture numerous times (Matt. 23-26, Mark 13-14, Luke 22-23, John 13-17),...

Enemies of Grace #4 Consumerism

Once upon a time in America, "blue laws" prohibited businesses from opening on Sundays. It wasn't that long ago! Imagine: neither Chick-fil-A nor In-N-Out was available on a Sunday! What would we do… STARVE!! This seems almost laughable to modern Americans, as we've...

Enemies of Grace #3 Convenience

“God has put eternity into man’s heart, yet so that he cannot find out what God has done from the beginning to the end.” Ecclesiastes 3:11 The book of Ecclesiastes amazes me, mainly because of who wrote it: King Solomon, to whom the God of heaven and earth came in a...

Enemies of Grace #2 Complacency

Have you ever heard of "the doldrums"? No, it's not a funny name you can call your friends! In the ocean near the equator, the doldrums are windless waters, without current and in ancient days, without hope of escape. Now we have engined ships that can cruise in any...

Enemies of Grace #1: Comfort

Psalm 63:1 O God, you are my God; earnestly I seek you; my soul thirsts for you; my flesh faints for you, as in a dry and weary land where there is no water. King David, likely writing this psalm fleeing from either King Saul or his son Absalom, penned these words not...

Knowing Jesus: Beyond Bible Knowledge

I love reading the Bible and have read it from cover to cover countless times. My fascination with Scripture began when my friend, Tags, showed me how Jesus is present throughout the Old Testament. This passion, which has grown over time, led me to pursue a Master of...

The Power of Declaration

We all know the classic children’s story The Little Engine That Could by Watty Piper! For those unfamiliar with the story, perhaps the picture above will jog your memory. Even those who know the famous line, “I think I can, I think I can, I think I can!” may not...

Prayer Walking

“The Road to Emmaus,” an 1877 painting by Robert Zund Last Saturday, I had a super busy day planned. We were going to help friend set up her event in Los Angeles at 7 a.m., and then visit family afterward. I didn't think I'd have time for prayer or a workout since we...

Giving

Elijah Receiving Bread from the Widow of Zarephath 1 Kings 17:8-16 Giovanni Lanfranco (1621-1625)   “Give to the one who asks you, and don’t turn away from the one who wants to borrow from you.” Matthew 5:42 CSB I would like to start this blog post on the topic of...

Fasting

Last Saturday, for the first time, instead of taking my 2003 Chevy Tahoe to the shop, I changed the oil myself. With guidance from my dad and my father-in-law and help from some YouTube videos, I headed to O'Reilly's Auto Parts on a mission. After gathering all the...

Bowing Down

“Come let us worship and bow down; let us kneel before the Lord our Maker.” David in Psalm 95:6

Submission

As we approach the joyous occasion of Christmas, celebrating the birth of our Lord and Savior, Jesus Christ, I encourage us to consider the concept of "submission." In our society, this word often carries negative connotations, perceived as oppressive, restrictive of...

Testimony

"But as for me, how good it is to be near God! I have made the Sovereign LORD my shelter, and I will tell everyone about the wonderful things you do.” Psalm 73:28 As mentioned in last week's blog on Faith that Waits, Sarah and I have been seeking God's guidance...

Waiting

Joshua passing the River Jordan with the Ark of the Covenant by Benjamin West (1800)

Confession

I remember vividly the first time I watched pornography at eleven years old. It was as shocking as it was thrilling. With unlimited internet access and no accountability, my adolescent pernicious curiosity turned into inescapable cyber slavery. For years after, I...

Thanksgiving

Reflections on Exodus 14-15. But the Israelites had walked through the sea on dry ground, with the waters on their right and left like a wall to them. That day, the Lord saved Israel from the power of the Egyptians… When they saw the great power the Lord used against...

Prayer

"Spiritual Warfare" by Ron Dicianni"The effectual fervent prayer of a righteous man availeth much."James 5:16bHave you ever wondered while praying, “Am I supposed to speak out loud, or can I just think thoughts?” God is omniscient, right? I mean, Lord, you perceive my...

Faith in Action: From Mind to Matter

My whole life, I have been fascinated with the Lord of heaven and earth, the God of Israel, and the Scriptures and how they’ve pointed to one man, the Messiah Jesus Christ. I still remember the first time my friend Tags showed me a glimpse of Jesus in Genesis, which...

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Faith in Action: From Mind to Matter isn’t just another blog trying to give you more information about religion. It’s a call to action! What’s the point of knowing the Word of God if you don’t practice it? The Kingdom of God is not a matter of talk, but of power! Come dive into the transformative power of Faith in Action (FIA) and discover the true meaning of living a Christ-centered, Spirit-filled Life!

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Ministry

We’re passionate about seeing God’s Kingdom come and His will be done on Earth as it is in Heaven. To this end, we’re actively involved with NewSong and CANOPI. NewSong is a vibrant collective of house churches focused on outreach, discipleship, and passionately worshiping King Jesus. Our sister ministry, CANOPI, is a nonprofit dedicated to expanding the Kingdom in Central America. We do this by equipping, serving, uniting, and championing churches through free leadership training, marriage conferences for pastors, and tons of street evangelism.

 

Spring 2025 News

House Church & BaptismsOur Oceanside house church has been overflowing with joy this past month! We celebrated two baptisms! Even though we bought a huge horse trough for baptisms, we hardly use it because we got the ocean one block away! It's incredibly powerful to witness these young men count the cost and go "all in" for Jesus, dedicating their lives to following Him wholeheartedly. Check...

Winter 2025 News

We are overflowing with gratitude for God's faithfulness throughout the whirlwind of the first three months of 2025! We thank our Heavenly Father for His constant provision, guidance, and the incredible ways He has moved. Here are a few highlights: Oceanside House Church Launch  We are thrilled to launch our NewSong house church in Oceanside! After much prayer and dreaming, we are excited to see...
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Current Monthly Donors!

What a blessing! Our dedicated monthly donors are making it possible for us to serve full-time in Oceanside, Mexico, and Costa Rica, focusing on outreach and discipleship. We’re seeing lives transformed and are filled with gratitude!

Will you join us in this exciting journey? Your prayers and partnership are deeply appreciated.

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Phone

(805) 460 4040 ext. 505

Location

Oceanside, CA

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