If we had statistics to show the reasons for backsliding, the top of the chart would undoubtedly be related to a Whom. People murder others with words and actions and sometimes the others is us. We like to even the score. But the Word of the Lord is quite clear on how we should not take that approach. This advice is tough and only followed by those determined not to let anything separate them from the love of Christ.
Children take on the attributes of their parents.
Perfect in this verse means complete. When we are able to love, bless and pray for those that have done us wrong, we are the closest to perfection that we can be. These scriptures sound well and good, but their practicality seems lacking. There are people who hurt us deeply and ruin our reputation for their gain. It is hard to love, bless and pray for them.