Defeat

فَهَزَمُوهُم بِإِذْنِ ٱللَّهِ وَقَتَلَ دَاوُۥدُ جَالُوتَ وَءَاتَىٰهُ ٱللَّهُ ٱلْمُلْكَ وَٱلْحِكْمَةَ وَعَلَّمَهُۥ مِمَّا يَشَآءُ ۗ وَلَوْلَا دَفْعُ ٱللَّهِ ٱلنَّاسَ بَعْضَهُم بِبَعْضٍ لَّفَسَدَتِ ٱلْأَرْضُ وَلَـٰكِنَّ ٱللَّهَ ذُو فَضْلٍ عَلَى ٱلْعَـٰلَمِينَ

and so with God’s permission they defeated them. David killed Goliath, and God gave him sovereignty and wisdom and taught him what He pleased. If God did not drive some back by means of others the earth would be completely corrupt, but God is bountiful to all.

وَمَا جَعَلَهُ ٱللَّهُ إِلَّا بُشْرَىٰ لَكُمْ وَلِتَطْمَئِنَّ قُلُوبُكُم بِهِۦ ۗ وَمَا ٱلنَّصْرُ إِلَّا مِنْ عِندِ ٱللَّهِ ٱلْعَزِيزِ ٱلْحَكِيمِ

as a message of hope for you [believers] to put your hearts at rest- help comes only from God, the Mighty, the Wise-

لِيَقْطَعَ طَرَفًا مِّنَ ٱلَّذِينَ كَفَرُوٓا۟ أَوْ يَكْبِتَهُمْ فَيَنقَلِبُوا۟ خَآئِبِينَ

and in order to cut off the flanks of the disbelievers’ army and frustrate them, to make them withdraw in total defeat.

فَغُلِبُوا۟ هُنَالِكَ وَٱنقَلَبُوا۟ صَـٰغِرِينَ

they were defeated there and utterly humiliated.

غُلِبَتِ ٱلرُّومُ

The Byzantines have been defeated

فِىٓ أَدْنَى ٱلْأَرْضِ وَهُم مِّنۢ بَعْدِ غَلَبِهِمْ سَيَغْلِبُونَ

in a nearby land. They will reverse their defeat with a victory

جُندٌ مَّا هُنَالِكَ مَهْزُومٌ مِّنَ ٱلْأَحْزَابِ

their armed alliance is weak and will be crushed.

سَيُهْزَمُ ٱلْجَمْعُ وَيُوَلُّونَ ٱلدُّبُرَ

Their forces will be routed and they will turn tail and flee.