How do we know God's command to love enemies is true?

The command to love our enemies, found in Matthew 5:44, is rooted in the authority of Jesus Christ, who underscores this principle as essential for true Christian discipleship. It aligns with the character of God, who shows grace to both the righteous and the wicked. This command is not just a suggestion; it is a directive that Jesus expects his followers to embody. By loving our enemies, we distinguish ourselves from others, reflecting God's mercy and grace, which He has abundantly extended to us even when we were still sinners.