Take heed of quenching the Spirit.  Let your ears be open to hear what He says to the churches (Revelation 2:29).  Deliver up yourselves wholly to the Spirit’s conduct and guidance: be led by Him from what ways and in what ways He pleases, or else He will be grieved and withdraw; and if He does so, alas, your helper will be gone and your infirmities will hinder your perseverance in prayer.

— Nathaniel Vincent
“Spirit of Prayer”