In today’s (chronological) Bible reading… Romans 13-16… Paul closes his book to the Romans by transitioning from a theological discussion to practical things.
Some of the practical things Paul dealt with were such things as how a Christian is to relate to his/her government; the priority of love; the importance of living a holy life; the danger of having judgmental attitudes toward other believers; a warning against being a stumbling block to others in their search for – and walk with – God; thee need to encourage others; etc.
Paul closed his letter with some personal thoughts and plans.
Paul’s letter to the Romans is much like Paul’s other letters (although filled with more theology), in that it starts with a theological discussion and then applies that theology to practical living.
That’s the way a Christian ought to conduct his/her life. He/she ought to get a grasp of who God is and what God expects, then apply that to the way he/she lives his/her life.
In this way, we can be sure our attitudes and actions are pleasing to God and are pointing others to Him.