Jesus was telling his followers that if they loved only those loving them, their love would be incomplete, deficient, defective. They should perfect, or bring to full measure, their love by including even their enemies.
त्यांनी प्रेम दाखवण्यात परिपूर्ण असले पाहिजे अर्थात आपल्या शत्रूंवरही प्रेम दाखवले पाहिजे.