'Power' in the Bible

and to you that are troubled repose with us, at the revelation of the Lord Jesus from heaven, with the angels of his power,

To which end we also pray always for you, that our God may count you worthy of the calling, and fulfil all the good pleasure of his goodness and the work of faith with power,

whose coming is according to the working of Satan in all power and signs and wonders of falsehood,