I love this excerpt about how the Trinity is the basis of confidence for Christians taking up the task of evangelism, which I quote here from an evangelistic training manual (see bottom of this post for details). If you are telling people the gospel, you need this kind of encouragement:
God is Our Confidence
Where does our confidence come from? How can we go out boldly and share Christ with confidence? God not only saves us, God IS our salvation. It makes sense then that God Himself should be the ultimate source of our confidence when we are sharing about His great salvation. We can trust that God is working in us and the people we speak to about Christ.
“Behold, God is my salvation; I will trust, and will not be afraid; for the LORD GOD is my strength and my song, and he has become my salvation” (Isa. 12:2).
How Does God Work?
God works together as Father, Son and Holy Spirit to perform our salvation, to be our salvation and to bring men and women to salvation. Sharing the gospel works because God works when we share the gospel. Our confidence is in God –God the Father, God the Son and God the Holy Spirit.
GOD THE FATHER: His love gives us confidence
The plan to save mankind starts with the Father’s great love for us. Therefore, we can be assured that salvation is God’s plan, and because of that, He wants to work in and through us for His glory.
“For God so loved the world that he gave his only Son…” (John 3:16).
1 The Father in His love chose to send His only Son to die so that sinful men and women can have eternal life (John 3:16).
2 The Father lovingly decided to adopt people as sons and daughters through Jesus Christ, so that He can give them every blessing He has (Eph. 1:3-6).
3 The Father draws people to faith in Christ and reveals the truth of Christ to men and women (John 6:44; Matt. 16:17).
GOD THE SON: His authority gives us confidence
Jesus has been given all power and authority in Heaven and on earth. Therefore we do not need to be intimidated to speak on His behalf because the most important person has granted us the authority to preach the gospel in His name.