Last Sunday morning, we collectively read Psalm 40:1–5 as our responsive call to worship. Recall v. 5:

You have multiplied, O Lord my God, your wondrous deeds and your thoughts toward us; none can compare with you! I will proclaim and tell of them, yet they are more than can be told.

David announces that he will proclaim all the wondrous deeds and thoughts or intentions that YHWH has multiplied to the people of God’s kingdom. We applied that this past Sunday to our call in Colossians 4:2–6 to be witnesses to those outside the kingdom—to walk in wisdom toward outsiders and to let [our] speech always be gracious, seasoned with salt. This is vital. We as disciples of Jesus must be his witnesses and ambassadors of the kingdom of God (Matthew 5:13–16; 2 Corinthians 5:20–21). However, we should also take a cue from our king and tell of God’s kindness toward us to our brothers and sisters in Christ, the church, as well. David, writing prophetically in the voice of Jesus in Psalm 22, pens:

I will tell of your name to my brothers; in the midst of the congregation I will praise you: You who fear the Lord, praise him! All you offspring of Jacob, glorify him, and stand in awe of him, all you offspring of Israel! (Psalm 22:22–23).

Our call as disciples is also to tell of Jesus to our brothers and to praise him in the congregation. God calls us to share Jesus with one another by telling of the wondrous deeds and thoughts he has multiplied toward us. Testimonies of what the Lord has done for us encourage our hearts in Christ and build up the church.

We see this exemplified by Paul and his partner in ministry, Tychicus.

Tychicus shows up a few times in Scripture. And, from the evidence available, he seems to be a very trusted co-laborer of Paul’s. When the church in Crete needs to be covered in Titus’ absence, one of Paul’s go to candidates is Tychicus (Titus 3:12). When Paul requires Timothy, he sends Tychicus to Ephesus to cover for Timothy while he’s gone (2 Timothy 4:11–12). Tychicus, Paul tells us, is a beloved brother and faithful minister of the gospel (Colossians 4:7; Ephesians 6:21). And, one of his most important jobs, it seems, was to to testify to other churches—to tell everything that was happening in Paul’s ministry:

Tychicus will tell you all about my activities… They (Tychicus and Onesimus) will tell you of everything that has taken place here (Colossians 4:7, 9).

 So that you also may know how I am and what I am doing, Tychicus the beloved brother and faithful minister in the Lord will tell you everything (Ephesians 6:21).

Why did Paul send Tychicus to tell about his ministry? He had this purpose in mind: to encourage the hearts of those who listened.

Paul writes to the Colossians and the Ephesians using identical language, “I have sent him (Tychicus) to you for this very purpose, that you may know how we are and that he may encourage your hearts” (Colossians 4:8; Ephesians 6:22). Paul wants other saints to know what God is doing through his ministry in order to encourage or exhort them.

Some of the sweetest moments in our corporate worship are our “Mission Moments” when a missionary we support visits and shares with us how the gospel has been increasing and bearing fruit in their ministries. In what manner does this encourage or exhort our hearts so much? I think it does so in at least three ways.

First, hearing the testimonies of what God has done for and through his people in the gospel magnifies Jesus in our midst. And, when we magnify Jesus in our midst, this stokes our affections for and worship of him as we behold his glory.

Second, hearing the testimonies of what God has done for and through his people in the gospel strengthens our unity and solidarity with Christ as the church.

Third, hearing the testimonies of what God has done for and through his people in their gospel ministry emboldens gospel action—we effectively spur one another on to love and good works (Hebrews 10:24).

There is one scene from Acts that captures this quite poignantly. In Acts 4:23–31, Peter and John return to their friends to report their recent gospel activities (healing of the lame beggar [Acts 3:1–10], Peter preaching in the temple [Acts 3:11–26], and the persecution they endured at the hands of the chief priests and elders [Acts 4:1–22]). They specifically report “what the chief priests and the elders had said to them” (Acts 4:23). After hearing their testimony three things result: (1) Worship—They begin to worship the Lord (Acts 4:24–30), (2) Strengthened unity—They prayerfully worship together (Acts 4:24), and (3) Emboldened gospel action—The Holy Spirit fills them and they continued to speak the gospel with boldness (4:31).

The lesson for us is, let’s be like Paul, Tychicus, Peter, and John. Let’s make a habit of sharing with our fellow brothers and sister what Jesus is doing in our lives and ministries. Because, our testimonies (1) magnify Jesus, leading to worship, (2) galvanize our collective solidarity with and our unity in Jesus, (3) and embolden gospel action. In short, when we share our testimonies of Jesus, we encourage one another in Christ and build up the church.

In that spirit, I leave you with these words of instruction from our King from Mark 5:19:

“Go home to your friends and tell them how much the Lord has done for you, and how he has had mercy on you.”