Spirit of God

On his way there the Spirit of God comes on him, and like a puppet on a string he prophesies until he arrives. And just as his men have been stripped of power, so the king is stripped of his robes and lies naked on the ground before Samuel, prophesying all that day and on through the night (19:23-24).
The Spirit of the Lord does not honor Saul. It humiliates him, shaming and rendering him impotent, totally unable to exert his will in the presence of his foes. His stubborn heart rejected God's mercy.
Therefore when the power took effect it mocked his pride and kingly power. Manifestations of the Spirit's power do not ever reflect credit to the person in whom they are manifest. They reflect only the power, the glory and the mercy of God, whether the manifestation results in the subject's blessing or the subject's humiliation. They can never be a ground for boasting.
They are never a sign of God's favoritism or of superior spiritual attainment.

John White, When The Spirit Comes With Power, p. 26

Healing

"I know men's atheism and infidelity will never lack somewhat to say against the most eminent providences, though they were miracles... but when mercies [i.e. of healing] are granted in the very time of prayer, and when, to reason, there is no hope, and without the use or help of any other means... is not this as plain as if God from Heaven should say to us: I am fulfilling to thee the true word of my promise in Christ my Sonne? How many times have I known the prayer of faith to save the sick when all physicians have given them up as dead!"
Richard Baxter, When The Spirit Comes With Power, p. 20.

Holy Spirit

"We must be very careful in these matters. What do we know of the realm of the Spirit? What do we know of the Spirit falling on people? What do we know about these great manifestations of the Holy Spirit? We need to be very careful 'lest we be found fighting against God,' lest we be guilty of 'quenching the Spirit of God.'"
D. Martyn Lloyd-Jones, When The Spirit Comes With Power, p. 13.

Holy Spirit

These effects on the body were not owing to the influence of example, but began... when there was no such enthusiastical season as many account this, but it was a very dead time through the land."

Jonathan Edwards, When The Spirit Comes With Power, p. 13.

God's Obsession

“Do you not know... what God's estimate of the gospel is? Do you not know that it has been the chief subject of His thoughts and acts from all eternity? He looks on it as the grandest of all His works.” - Charles Spurgeon

Retreating vs. Invading

“Most of us are guilty at precisely this point, and the evangelical church in particular is guilty. We have retreated from the world rather than invading the world."

- James Montgomery Boice, The Gospel of John (Grand Rapids, MI: Baker Books, 1985), 1595.

Joy

We must, therefore, be careful that our primary joy is in God, as he is in and of himself, and not in our experience of God, That we have been made recipients of his grace and are enabled to behold his beauty is a marvelous thing indeed. But it is secondary and consequential to a recognition of God's inherent excellency. What brings you greatest ad most immediate delight: your experience of a revelation of Christ, or Christ revealed?

Sam Storms, Signs of the Spirit: An Interpretation of Jonathan Edwards' Religious Affections,
p. 92