Surah Muhammad 47:21

طَاعَةٌ وَقَوْلٌ مَّعْرُوفٌ ۚ فَإِذَا عَزَمَ ٱلْأَمْرُ فَلَوْ صَدَقُوا۟ ٱللَّهَ لَكَانَ خَيْرًا لَّهُمْ

Obedience and good words. And when the matter [of fighting] was determined, if they had been true to Allāh, it would have been better for them.

Translation: Saheeh International

Tafsir

would be to offer obedience and honourable words that is words that are kind to you. Then when the matter has been resolved upon that is to say when fighting has been prescribed if they are loyal to God in faith and obedience it will be better for them the sentence beginning with law ‘if’ constitutes the response to …

Excerpt from Tafsir al-Jalalayn, commentary on 47:21, via Quran.com. The reader has the full commentary and 9 more tafsirs.