'In The Power Of God' in the Bible

so that your faith would not rest on the wisdom and rhetoric of men, but on the power of God.

in [speaking] the word of truth, in the power of God; by the weapons of righteousness for the right hand [like holding the sword to attack] and for the left [like holding the shield to defend],

So do not be ashamed to testify about our Lord or about me His prisoner, but with me take your share of suffering for the gospel [continue to preach regardless of the circumstances], in accordance with the power of God [for His power is invincible],