The Believers
وَإِنَّ لَكُمْ فِى ٱلْأَنْعَـٰمِ لَعِبْرَةً ۖ نُّسْقِيكُم مِّمَّا فِى بُطُونِهَا وَلَكُمْ فِيهَا مَنَـٰفِعُ كَثِيرَةٌ وَمِنْهَا تَأْكُلُونَ
And indeed, for you in livestock is a lesson. We give you drink from that which is in their bellies, and for you in them are numerous benefits, and from them you eat.
Nearby ayahs help place verse 23:21 in sequence and meaning.
فَأَنشَأْنَا لَكُم بِهِۦ جَنَّـٰتٍ مِّن نَّخِيلٍ وَأَعْنَـٰبٍ لَّكُمْ فِيهَا فَوَٰكِهُ كَثِيرَةٌ وَمِنْهَا تَأْكُلُونَ
And We brought forth for you thereby gardens of palm trees and grapevines in which for you are abundant fruits and from which you eat.
وَشَجَرَةً تَخْرُجُ مِن طُورِ سَيْنَآءَ تَنۢبُتُ بِٱلدُّهْنِ وَصِبْغٍ لِّلْـَٔاكِلِينَ
And [We brought forth] a tree issuing from Mount Sinai which produces oil and food for those who eat.
وَعَلَيْهَا وَعَلَى ٱلْفُلْكِ تُحْمَلُونَ
And upon them and on ships you are carried.
وَلَقَدْ أَرْسَلْنَا نُوحًا إِلَىٰ قَوْمِهِۦ فَقَالَ يَـٰقَوْمِ ٱعْبُدُوا۟ ٱللَّهَ مَا لَكُم مِّنْ إِلَـٰهٍ غَيْرُهُۥٓ ۖ أَفَلَا تَتَّقُونَ
And We had certainly sent Noah to his people, and he said, "O my people, worship Allah; you have no deity other than Him; then will you not fear Him?"