You may not feel fully qualified to shoulder such a responsibility. But, as is the case of the anointed, it is God who qualifies you.
بِمَا أَنَّكَ خَادِمٌ لِلهِ ،‏ فَلَدَيْكَ خِدْمَةٌ لِتَقُومَ بِهَا .‏