Since Allah is the only decision-maker, every happening is in favor of the believers: everything has been planned for the benefit of religion and for the believers' life in the hereafter. Believers can refer to their past experience to see that there is a good for them at the end of every event. For that reason, believers put their entire trust in Allah. He is the one and only Protector. What a believer should do is to behave as Allah wants him to: fulfilling his responsibilities but depending on Allah for the outcomes. The following verses express this mystery, which is unknown to unbelievers.
“... for those who fear Allah, He (ever) prepares a way out. And He provides for him from (sources) he never could imagine. And if any one puts his trust in Allah, sufficient is (Allah) for him. Verily, for all things has Allah appointed a due proportion.” (Surat at-Talaq, 65:2-3)
“Say: ‘Nothing will happen to us except what Allah has decreed for us: He is our Protector: and in Allah let the believers put their trust.’” (Surat at-Tawba, 9:51)
What the believers should say to the unbelievers is also stated in the Qur’an:
“And why should we not put our trust in Allah while He indeed has guided us our ways. And we shall certainly bear with patience all the hurt you may cause us, and in Allah (alone) let those who trust, put their trust. (Surah Ibrahim, 14:12)
In another verse, it is said:
“If Allah helps you, none can overcome you; and if He forsakes you, who is there after Him that can help you? And in Allah (alone) let believers put their trust.” (Surat Al-e-Imran, 3:160)