1. The atheism and unbelief reigning every where, so that we may take up that old complaint, Lord, Who will believe our report? It's said of some, Christ could do no miracles there, because of their unbelief, Mar. 6.5, 6. Not but that he had power, but to shew what an obstacle unbelief was; When they insulted over Christ at the Crosse, Let him come down and save himself, if he be the Son of God let him deliver him, Heb. 4.2. Christ did not these things not because he wanted power but they were wicked; so Christs power is not shortened; It's not because there is no Ministry, but because the unbelief of man is great.
2. Christ demonstrates not his power it may be because Customarinesse under the Word breeds contempt and negligence: At the first mens affections are quick, but when accustomed to the world all the excellency and livelinesse of it is taken away. A blinde man upon the first recovery of sight would admire the Sunne, but those that are used to it regard it not, though so glorious a creature.
3. The unthankefulnesse and unfruitfulness under the means of grace makes Christ deny his power; When the people of Israel murmured at their Manna, then God was provoked against them; He punished the Heathens because they did not glorifie God according to their knowledge, neither were thankful, how much more Christians for abusing the Light of the Gospel.
4. Though there are not so many yet there are some few in most places that have found this mighty power of Christ on their souls; Though there were not many raised out of the grave by Christ, yet one Lazarus is enough to demonstrate the glorious power of Christ; One in a Family, one in a Town, yea, one in a whole Nation, is enough to prove that Christ though now in heaven hath this power over men in the earth; Let such then who have been thus taught, so as no man, no book could teach them, give glory to Christ, blesse Christ for good Sermons, good Books, especially the Word of God, but above all that virtue cometh from Christ by these to heal thee; Though the woman had touched the hem of Christs garments a thousand times, yet if Christ had not caused virtue to come out of him, she had not been cured, so it is here. . ." Anthony Burgess 'Christ's Prayer Before His Passion: Expository Sermons on John 17' Volume 1 Sermon 7