Paragraph 425 of the Catechism of the Catholic Church: “The transmission of the Christian faith consists primarily in proclaiming Jesus Christ in order to lead others to faith in him.”
This means you and I are sharing the life, the death, and resurrection of Jesus with others. Paul recognizes this, and by referencing the Old Testament prophecies that point us to Christ, begins to preach.
Sometimes we think it is all about us. We must be the best of preachers and teachers. We need to know all the dogmas and teachings of the church. We must be prepared to refute every objection. Nope. All of that is good and you will at one time or another make use of that information, but the fact is that Jesus suffered, died, was buried, and rose on the third day. If we keep that always in mind what is there to refute? What is there to challenge? We might not be the best in debate, but this is the truth. If we stick to the truth, it is not you or me that will bring people to Christ, but God.
God is the one that works the mysteries of faith in hearts. We are to be emissaries like the apostles taking the message out to the world. Jesus did not take the highly educated of His time. He knew what was in their hearts.
So it is today. Jesus is calling you not because of your credentials but because you love Him and desire for others to know Him as well. Believe me, you have exactly what Jesus wants you to have at this very moment for the mission He has given you. Jesus, I trust in you.
May the Lord bless you in the name of the Father, and of the Son, and of the Holy Spirit. Amen