Strength and comfort, and power and peace, in our walking with God, are the things of our desires. Were any of us asked seriously, what it is that troubles us, we must refer it to one of these heads:—either we want strength or power, vigour and life, in our obedience, in our walking with God; or we want peace, comfort, and consolation therein. Whatever it is that may befall a believer that doth not belong to one of these two heads, doth not deserve to be mentioned in the days of our complaints.
– John Owen –
from The Mortification of Sin in Believers, volume 6 of Works, page 21