30:4
فِى بِضْعِ سِنِينَ ۗ لِلَّهِ ٱلْأَمْرُ مِن قَبْلُ وَمِنۢ بَعْدُ ۚ وَيَوْمَئِذٍ يَفْرَحُ ٱلْمُؤْمِنُونَ
Within three to nine years. To Allah belongs the command before and after. And that day the believers will rejoice
The Romans
فِى بِضْعِ سِنِينَ ۗ لِلَّهِ ٱلْأَمْرُ مِن قَبْلُ وَمِنۢ بَعْدُ ۚ وَيَوْمَئِذٍ يَفْرَحُ ٱلْمُؤْمِنُونَ
Within three to nine years. To Allah belongs the command before and after. And that day the believers will rejoice
Nearby ayahs help place verse 30:4 in sequence and meaning.
غُلِبَتِ ٱلرُّومُ
The Byzantines have been defeated
فِىٓ أَدْنَى ٱلْأَرْضِ وَهُم مِّنۢ بَعْدِ غَلَبِهِمْ سَيَغْلِبُونَ
In the nearest land. But they, after their defeat, will overcome.
بِنَصْرِ ٱللَّهِ ۚ يَنصُرُ مَن يَشَآءُ ۖ وَهُوَ ٱلْعَزِيزُ ٱلرَّحِيمُ
In the victory of Allah. He gives victory to whom He wills, and He is the Exalted in Might, the Merciful.
وَعْدَ ٱللَّهِ ۖ لَا يُخْلِفُ ٱللَّهُ وَعْدَهُۥ وَلَـٰكِنَّ أَكْثَرَ ٱلنَّاسِ لَا يَعْلَمُونَ
[It is] the promise of Allah. Allah does not fail in His promise, but most of the people do not know.