Missionaries - John & Martine Smithwick

Who We Are

John and Martine have traveled the world preaching the Gospel of Jesus Christ to the unreached as well as believers. They have carried God’s healing, miracle power to over 25 nations and have seen God perform many notable miracles.

Since JSMI was founded in 1998, they have seen over 1.6 million souls won to Christ through mass crusade evangelism and strategic outreaches. In many unreached areas of the world, JSMI has planted churches and trained new believers to reach out to their communities.

It is their heart to not only reach the unreached, but also to raise up an army that is passionate about doing the same. That is why they take teams with them overseas on their Global Ventures Trips. They also produce the reality TV show, “Global Ventures”, to expose the great need to win the lost around the world.

Our mission is to initiate & facilitate a global evangelism movement by raising up and mobilizing an army of frontline harvesters who effectively minister the Gospel in power & miracles to the unreached masses, and as a result – win a billion souls to Christ.

What We Do

Global Ventures – Missions Trips

Here at JSMI, We are dedicated to raising up a generation that is focused on reaping the harvest. That’s why we launched Global Ventures in 2002.

As a part of a Global Ventures trip, each team member experiences hands-on ministry through drama, children’s ministry, and street evangelism. The teams get to be a part of radically changing various regions of the world through strategic evangelism and crusades.

Every day, team members venture out into parks, plazas, markets, and schools. There, they experience the Power of God flow through their hands as people are saved, and lives are forever changed. Also, everyone gets to take part in a Mass Crusade and experience the impact of seeing thousands won to Christ.

Mass Crusades

We conduct Mass Evangelistic Crusades in different countries all around the world, specifically in regions where they have not heard of Christ. A Mass Crusade strategically impacts a whole city or region with the Gospel of Jesus Christ in just a few days.

Several days before the start of a Crusade, an advertising campaign is launched with banners, fliers, and TV and radio commercials saturating the city. Thousands of people attend these crusades and are born again.

What We Do for Follow-Up

With the assistance of local Pastors and workers, the new believers are established into churches, and given materials to help them grow spiritually. In areas where there are no Christian churches like Thailand and India, we plant and support the launch of new churches.

Planting Churches

The Thailand Harvest Plan began in 2005 and is a strategy that systematically conducts Mass Crusades and plants churches in unreached areas of Thailand. As a part of the THP, new believers are discipled and emerging leaders are trained and equipped to fulfill God’s call on their lives.

The long-term goal of the THP is to train Thai believers to become leaders and pastors and plant 100 churches in unreached regions of Thailand. JSMI plans to see over 500,000 salvations through the THP over time.

Local Ministry

Not only does John minister overseas, but he also brings that same fire and passion to churches all over America. He conducts Miracle Meetings where miraculous healings manifest just like during the crusades overseas.

His message exhorts believers to rise up in God’s power and authority according to Mark 16:15-20 in order to effectively reach their world for Jesus. He also teaches in evangelism training seminars and workshops empowering churches to be effective soul winners. If you are interested in John ministering in your church, please call our office.


The Global Ventures Internship Program was designed to equip those who have a heart and a passion to win the lost and reach the unreached people of the world. As a part of this internship program, you will learn first-hand about Crusades and practical logistics of missions ministry.

Ignite Your Passion for the Harvest

Through dynamic guest speakers, missionaries, mentorship, and hands on training, this intensive 12-month program will provide invaluable experience and character development.

How Can I Help?

Please visit Smithwick Ministries website to get involved through prayer and giving opportunities.