Rom 16:1-16 " I commend to you our sister Phoebe, a servant of the church at Cenchreae,  that you may welcome her in the Lord in a way worthy of the saints, and help her in whatever she may need from you, for she has been a patron of many and of myself as well.  Greet Prisca and Aquila, my fellow workers in Christ Jesus, who risked their necks for my life, to whom not only I give thanks but all the churches of the Gentiles give thanks as well.  Greet also the church in their house. Greet my beloved Epaenetus, who was the first convert to Christ in Asia.  Greet Mary, who has worked hard for you. Greet Andronicus and Junia, my kinsmen and my fellow prisoners. They are well known to the apostles, and they were in Christ before me.  Greet Ampliatus, my beloved in the Lord.  Greet Urbanus, our fellow worker in Christ, and my beloved Stachys.  Greet Apelles, who is approved in Christ. Greet those who belong to the family of Aristobulus. Greet my kinsman Herodion. Greet those in the Lord who belong to the family of Narcissus.  Greet those workers in the Lord, Tryphaena and Tryphosa. Greet the beloved Persis, who has worked hard in the Lord. Greet Rufus, chosen in the Lord; also his mother, who has been a mother to me as well. Greet Asyncritus, Phlegon, Hermes, Patrobas, Hermas, and the brothers who are with them. Greet Philologus, Julia, Nereus and his sister, and Olympas, and all the saints who are with them. Greet one another with a holy kiss. All the churches of Christ greet you." 

There were actual friends and foes that Paul had in mind when he wrote this letter. 
Some people are remembered well, they have been helpful, risked their lives for others, responded in acceptance and love, these people you really want to warn and encourage. Paul had them in mind throughout his writings. 
Others just want to be contrary, they want attention. It is not the quiet person who most leaders just ignore, even though they may have something beneficial to contribute. These people are working their way into the forefront, they want recognition- even at the expense of the current leaders. 
Naive leaders are led about by those who are the loudest, they like to grease squeaky wheels- that are just inherently squeaky. Discerning leaders know how to separate noise from genuine concern for truth. 

Rom 16:17,18  "I appeal to you, brothers, to watch out for those who cause divisions and create obstacles contrary to the doctrine that you have been taught; avoid them. For such persons do not serve our Lord Christ, but their own appetites, and by smooth talk and flattery they deceive the hearts of the naive." 

Rom 16:19 "For your obedience is known to all, so that I rejoice over you, but I want you to be wise as to what is good and innocent as to what is evil." 

The strength of God is awesome- and through His grace in you and in us we will endure and conquer.

Rom 16:20-23  "The God of peace will soon crush Satan under your feet. The grace of our Lord Jesus Christ be with you. Timothy, my fellow worker, greets you; so do Lucius and Jason and Sosipater, my kinsmen. I Tertius, who wrote this letter, greet you in the Lord. Gaius, who is host to me and to the whole church, greets you. Erastus, the city treasurer, and our brother Quartus, greet you." 

It is all to Him, all for Him, He is the only strength, he is the eternal word, and to Him belongs eternal glory. He is Absolute Love and is bringing about an obedience that comes from faith in His love and goodness. Amen!

Rom 16:24-27 " [The grace of our Lord Jesus Christ be with you all. Amen.] Now to him who is able to strengthen you according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery that was kept secret for long ages  but has now been disclosed and through the prophetic writings has been made known to all nations, according to the command of the eternal God, to bring about the obedience of faith--  to the only wise God be glory forevermore through Jesus Christ! Amen."