Join the First Wave

Serving Challenge: A 40-Day Challenge
To Serve Like Jesus

Get sneak peeks and updates, exclusive discounts, and special offers for Serving Challenge when you join the First Wave.

Join now before prices increase!


To Serve for Jesus

To Serve with Jesus

To Serve Like Jesus

You were made for more than just believing and existing until you die. You were made to serve.

If Jesus offers a full and abundant life, then why does it feel as if words like burnout, exhaustion, anger, loneliness, unhappiness, and anxiety are winning the day? Something feels very off.

A full and abundant life results in purpose, meaning, fulfillment, joy, and happiness. What are we missing?

Red Letter Challenge is for Every Ministry

Individual Ministry

Find fulfillment and purpose through Bible study challenges that are simple in concept, but challenging in practice. 

Kids Ministry

The invitation to follow Jesus is for kids too. RLC will help your child learn discipleship targets in these faith-formative years that will develop them into great followers of Jesus!

Red Letter Challenge | Your Trusted Source for Bible Studies & Books

Grow your church. Grow your Bible study or small groups. Unify around the words of Jesus. Start a movement with done-for-you resources and join the hundreds of churches who have seen God work powerfully through RLC.

Discover the 5 Aspects of Serving Like Jesus

Aspect 1: Attitude

Jesus served us because He so loves us. Just as His attitude shaped how He served us, so too, does our attitude shape how we serve others.

Aspect 2: Availability

Jesus made Himself available to us by leaving His throne in heaven to come down into this world.

Aspect 3: Action

It’s one thing to think and strategize about serving. But, to truly serve like Jesus, is a call to action that often requires losing so that others win.

Aspect 4: Ability

You do not have the ability, like Jesus, to save people from their sins. However, you are uniquely wired and gifted.

Aspect 5: Ambition

Our ultimate ambition in life is to serve and glorify God. We do not serve to make our name great, but to make His name great.

Serving Challenge Preview

Authors, Zach and Allison Zehnder, share the heart behind their newest 40-day challenge. Watch the replay and find out more about how Serving Challenge could be a perfect fit to not only grow disciples, but to produce more servants and volunteers than you ever thought possible. While many churches are feeling the volunteer crunch, you can use this resource to increase both the quality and quantity of volunteers serving inside and outside your church.

What's Included in the First Wave?

Join by end of April: $15/book for 50 books or more. 

Join by end of May: $16/book for 50 books or more

Join by end of June: $17/book for 50 books or more

Join by end of July: $18/book for 50 books or more

Included in every 50 books are also 50 FREE wristbands and one FREE t-shirt. Retail on new 40-day books will be $25 each so joining in April, including the FREE stuff, is 45+% off the retail price. 

Also included starting in April are first looks updates twice a month, a FREE Zoom with Zach for your church staff or leadership, and a FREE personalized video with Zach. Other surprises will come too that I can’t tell you about yet 🙂

*Churches or small group bible studies that are jumping into the First Wave will either launch October 1 or October 8. If it doesn’t work in your church calendar to launch this Fall but you would like to get materials at the first wave prices that is perfectly acceptable. If you have plans to do this in New Year or Lent 2024 you can agree to first wave pricing. Your agreement and payment will help us offset all of the expenses to launch this project and we’d be extremely grateful for your upfront payment.

How it works

Save the Date

We will launch this series on October 1st, 2023. Churches that are jumping into the First Wave will either launch October 1 or October 8.*

Explore Serving Challenge

Watch the webinar replay of How to Increase Volunteers Inside and Outside Your Church and hear Zach and Allison Zehnder give a preview of how to serve like Jesus.

Join the First Wave Officially

Click the First Wave button, fill out the form, and pre-pay for your materials. The sooner you join the better the perks!

What’s Different about Red Letter Challenge?

We know what it’s like to live in this world, to have success and still feel empty, still longing for something more. Red Letter Challenge offers practical habits and behaviors for Christian living and we keep the language simple. Whether you join a 40-day challenge as an individual or a church, you’ll gain a deeper understanding of the ways of Jesus and discover purpose and fulfillment in the journey.

Churches have completed a 40-day challenge​

People have completed
a 40-day challenge

States, 7 countries, and growing!

What Church Leaders are Saying​

Red Letter Challenge | Your Trusted Source for Bible Studies & Books

“In an era where people are struggling with discipleship, diving into the words of Jesus is one of the best things you can do. I love how Red Letter Challenge makes it easy to get an entire church diving deeper into the teachings of Christ.”

Carey Nieuwhof

Founding Pastor of Connexus Church, Author and Speaker

“Leading churches are using campaigns to increase engagement in their community. Red Letter Challenge is not only a plug and play campaign to help your church gain a better insight into the teaching of Jesus but it will also help your church grow because of deeper engagement!”

Rich Birch

Founder of unSeminary, Author, Speaker

Red Letter Challenge | Your Trusted Source for Bible Studies & Books

“If you feel like you were made for something more or if you are tired of checking religious boxes, the Red Letter Challenge is for you! By challenging people to go back to the good news message of Jesus, I truly believe this will help you find the life you were made for.”

Mike Foster

40 Days Changes Everything

Live Like Jesus

Focused on five key discipleship areas, Red Letter Challenge guides you through His words as you become a greater follower of Jesus Christ.

Take Practical,
Daily Challenges

Every day, RLC presents you with a new challenge that will stretch and grow you on your journey.

Life Change in 40 Days

You’ll be joining thousands of individuals and hundreds of churches who have grown closer to God and strengthened their faith through this 40-day challenge.

Church Packs

More than just a book, Red Letter Challenge is a perfect 40-day church campaign. From 10 people to churches with 1,500+ we have church packs to fit every size. Find out what’s included and what’s right for you!