يَـٰٓأَيُّهَا ٱلرُّسُلُ كُلُوا۟ مِنَ ٱلطَّيِّبَـٰتِ وَٱعْمَلُوا۟ صَـٰلِحًا ۖ إِنِّى بِمَا تَعْمَلُونَ عَلِيمٌ
Yaaa aiyuhar Rusulu kuloo minat taiyibaati wa'maloo saalihan innee bimaa ta'maloona 'Aleem
Messengers, eat from what is wholesome and act righteously. I am well aware of what you do.
Messengers are addressed here as a group, in the plural vocative, and this is the only verse that does it, though they came in different eras and never assembled. The speaker changes along with the address: the two verses before use the divine we, and from here the voice is first person singular, holding through the verse that follows. What the collective instruction asks for is plain, wholesome food and sound work.