A Greek (phrourein) verb and a Latin (excubare) verb are found in early literature describing the duties of a Bishop. Excubare literally means 'to sleep out of doors'. These terms point to your bishop's duty to be a guard, a watchman. Not for him ... metaphorically ... the comfort of a soft mattress and a downy pillow; not for him to enjoy unbroken slumbers until his alarm-clock rouses him at 6.00 for his Office, Meditation, and Mass.
His duty is that of the Watchman, on the ramparts of the Holy City, his eyes keen to spot an approaching Enemy. Ideally, he is a Cerberus whose bite is every bit as bad as his bark, ready to savage those who attempt illicit entry into his Household. Or he climbs comscientiously up the high city tower from which his keen eye can detect hostile movement even on a distant horizon.
And don't forget another Greek verb, gregorein, a rather late, perhaps koine coinage from egeirein, meaning to Stay Awake. Have you noticed how often the Gospels offered for Confessor Bishops emphasise the episcopal duty to watch, vigilare? "Watch, for ye know not what hour your Lord doth come. ... if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up ... " "he commanded the doorkeeper (thuroros) to watch ..."
And the Lord's teaching is that the Coming of the Judge upon that Day will be like that of a Lord or a King coming unexpectedly to make a reckoning with his household officers.
Your Bishop's job, before everything else, is to keep you safe by Watching and Guarding, so that on the Day of the Lord he can present you, with all his Household, pure and undefiled, to the Judge.
Does your Bishop understand this? Does he do these things? When a Wolf starts sniffing around the sheepfold, is your bishop out there to confront him, brave, resolute, and fearless?
When yet another Satanic assault upon the Faith wafts across the airwaves from the Seven Hills, is your bishop out there in front, valiant for the Faith handed down through the Apostles, for the Depositum Fidei, insistent that, if Peter carelessly misspoke, he should clear away the confusion; that if the Vicar of Christ himself has actually fallen short of the Faith, he should purge himself of his Hypocrisy (synhypocrithesan ... tei hypocrisei are S Paul's words in Galatians).
Is your Bishop careful to keep his nose and his copy-book clean, or does he bear the marks of a man who is haunted by the thought that he does not know whether his Lord will come at Midnight, or in the Third Watch?