The answer
God is the source of all power with whom we can do everything "I can do all things through Christ who strengthens me" (Phil 4:13); and without Whom we can do nothing (John 15:5) and with Him we can do everything.I suggest your read H.H. Pope Shenouda's book 'Ten Concepts'. It has a whole chapter on the concept of power and is available at: http://tasbeha.org/content/hh_books/Tenconcp/index.html.
Answered by His Eminence Metropolitan Youssef (opens in a new tab)