Allah's statement,

﴿فَإِذَا عَزَمْتَ فَتَوَكَّلْ عَلَى اللَّهِ﴾

(Then when you have taken a decision, put your trust in Allah,) means, if you conduct the required consultation and you then make a decision, trust in Allah over your decision,

﴿إِنَّ اللَّهَ يُحِبُّ الْمُتَوَكِّلِينَ﴾

(certainly, Allah loves those who put their trust (in Him)).

Allah's statement,

﴿إِن يَنصُرْكُمُ اللَّهُ فَلاَ غَالِبَ لَكُمْ وَإِن يَخْذُلْكُمْ فَمَن ذَا الَّذِى يَنصُرُكُم مِّنْ بَعْدِهِ وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ ﴾

(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), is similar to His statement that we mentioned earlier,

﴿وَمَا النَّصْرُ إِلاَّ مِنْ عِندِ اللَّهِ الْعَزِيزِ الْحَكِيمِ﴾

(And there is no victory except from Allah the Almighty, the All-Wise) ﴿3:126﴾.

Allah next commands the believers to trust in Him,

﴿وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ﴾

(And in Allah (Alone) let believers put their trust).