Your comment: “Jesus is enough. In the OT only one priest was needed between the person and God. For us, Jesus is the one. No other is needed. He makes intercession for us Himself.”
So why did Jesus have Apostles and gave them the command to go out and Preach and Baptize all?
Go, therefore,* and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the holy Spirit, 20i teaching them to observe all that I have commanded you.* And behold, I am with you always, until the end of the age.” Matthew 28
He trained them to do the job. But so that they could equip EVERY believer to also go out and preach the gospel and lead others to Himself.
He did not set up a special class of people. The Holy Spirit empowers ALL people to do His work in the world.
ALL believers are given that responsibility and privilege.
Christ gave all believers that command, not just the apostles.