47:16Among them are those who listen to you, but when they leave your presence, they say to those given knowledge, “What did he say just now?” Those are they whose hearts God has sealed, and they follow their own desires.

47:31We will certainly test you, until We know those among you who strive, and those who are steadfast, and We will test your reactions.

47:38Here you are, being called to spend in the cause of God. Among you are those who withhold; but whoever withholds is withholding against his own soul. God is the Rich, while you are the needy. And if you turn away, He will replace you with another people, and they will not be like you.