The Mutual Disillusion
فَٱتَّقُوا۟ ٱللَّهَ مَا ٱسْتَطَعْتُمْ وَٱسْمَعُوا۟ وَأَطِيعُوا۟ وَأَنفِقُوا۟ خَيْرًا لِّأَنفُسِكُمْ ۗ وَمَن يُوقَ شُحَّ نَفْسِهِۦ فَأُو۟لَـٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ
So fear Allah as much as you are able and listen and obey and spend [in the way of Allah]; it is better for your selves. And whoever is protected from the stinginess of his soul - it is those who will be the successful.
Nearby ayahs help place verse 64:16 in sequence and meaning.
يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِنَّ مِنْ أَزْوَٰجِكُمْ وَأَوْلَـٰدِكُمْ عَدُوًّا لَّكُمْ فَٱحْذَرُوهُمْ ۚ وَإِن تَعْفُوا۟ وَتَصْفَحُوا۟ وَتَغْفِرُوا۟ فَإِنَّ ٱللَّهَ غَفُورٌ رَّحِيمٌ
O you who have believed, indeed, among your wives and your children are enemies to you, so beware of them. But if you pardon and overlook and forgive - then indeed, Allah is Forgiving and Merciful.
إِنَّمَآ أَمْوَٰلُكُمْ وَأَوْلَـٰدُكُمْ فِتْنَةٌ ۚ وَٱللَّهُ عِندَهُۥٓ أَجْرٌ عَظِيمٌ
Your wealth and your children are but a trial, and Allah has with Him a great reward.
إِن تُقْرِضُوا۟ ٱللَّهَ قَرْضًا حَسَنًا يُضَـٰعِفْهُ لَكُمْ وَيَغْفِرْ لَكُمْ ۚ وَٱللَّهُ شَكُورٌ حَلِيمٌ
If you loan Allah a goodly loan, He will multiply it for you and forgive you. And Allah is Most Appreciative and Forbearing.
عَـٰلِمُ ٱلْغَيْبِ وَٱلشَّهَـٰدَةِ ٱلْعَزِيزُ ٱلْحَكِيمُ
Knower of the unseen and the witnessed, the Exalted in Might, the Wise.