What is the context of Matthew 5:46-47?

• The Sermon on the Mount: Love for Enemies (Matthew 5:43-48 true)
• Love for Enemies (Matthew 5:43-48 true)
• Teaching about Love for Enemies (Matthew 5:43-48 true)
• Love Your Enemies (Matthew 5:43-48 true)
• Personal Relationships (Matthew 5:21-48 true)