Here Paul begins a list of nine items, each of the form "Concerning ... be" to tell the believers what kind of people they should be. You may need to translate some of the items as "Concerning ... do." The list continues to [Romans 12:13](../12/13.md).
In the original language a different word is used for "love" here than is used in 12:9. This word means brotherly love or love for a friend or family member. This is natural human love between friends or relatives.