وَماand … are not الشّمسُthe sun وَالبدرُand the full moon الجميلُbeautiful بِكَوكَبٍa celestial body (with emphasis under negation)
وَما الشّمسُ وَالبدرُ الجميلُ بِكَوكَبٍ
بَلِrather اِسمانِtwo names لِلمَحبوبِfor the beloved بِالسرِّin secret وَالجهرِand in public
بَلِ اِسمانِ لِلمَحبوبِ بِالسرِّ وَالجهرِ
And the sun and the beautiful full moon are not celestial bodies,
The sun and the beautiful full moon are not planets
but two names for the beloved, in secret and in public.
But secret and public names for the Beloved