From Al-Ghazali on the Ninety-nine Beautiful Names of God
53. Al-Wakil-the Trustee-is one who has matters en trusted to him. But those so entrusted may be distinguished into one entrusted with some things (and that one is deficient) or one to whom everything is entrusted, and this is none bur God-may He be praised and exalted. Again, those entrusted may be distinguished into one who deserves to be entrusted with something, not by nature but by empowerment and delegation (yet such a one is deficient in that he needs the empowerment and delegation); or one who by his very nature deserves to have matters entrusted to him and in whom hearts place their trust, not by appointment or empowerment on the part of someone else and that is the absolute Trustee. Again, trustees may be distinguished into those who carry out whatever is entrusted to them perfectly with no shortcomings, or those who do not fulfil everything. Yet the absolute trustee is one to whom things are entrusted, who is fully capable of carrying them out, and faithful in executing them perfectly. That is none other than God the most high. So you should now understand the extent to which men may enter into the meaning of this name.