This is what the risen Lord actually says:

“Remember therefore how thou hast received and heard; and hold fast, and repent. If therefore thou shalt not watch, I will arrive over thee as a thief, and thou shalt not know what hour I will arrive over thee.”

The characteristics of thief coming are marked and clear.

The thief does not come with strident voice, with thunderous noise, nor in open daylight, but between the midnight and the morn, with shodden feet, silently, softly, and takes the treasure while all in the house are sunken in the depths of sleep.

When the sunbeams of the morning pelt the eyelids of the laggard sleepers they awake to find the thief has come and gone and in his going has taken the treasure with him.

If the symbol be of avail and not a mere exercise in logomachy then will the Lord, indeed, descend in the moral and spiritual night of the world while men are sleeping and in fancied security pleasantly dreaming.

He will descend unseen, unnoted. If men shall hear the sound of a trump it will have no greater significance to their spiritually deaf ears than any other passing sound. He will take, not the “great house” of religious profession, but those alone in that profession who have been regenerated and are indwelt by the Spirit, the dead who have fallen asleep in His name and the living who abide in Him.

Above all—imminency is grounded in the integrity of the Son of God and His apostles.

Unless all language is a deception; unless the promises of God are a baited lie; unless the apostles of Christ are the most shameless of all wanton tricksters; unless the Son of God Himself is the coolest traitor to truth who ever fooled the trusting hearts of needy men; unless He is the one being of all others who had the subtle and effective genius of making promises that fill the ear and are broken to the heart; unless He was the most skillful of all deceivers and rejoiced with malignant delight in deceiving the souls of men and thus proved Himself to be not the Son of God at all but the very son of falsehood, then seeing He is the reverse of all that, is in truth the very Son of God and truth itself, by His own unqualified statement, by its very character as exhortative warning His Coming must be and is—imminent. It is on the threshold of unfolding history and the gates of heaven are ajar ready for His Coming. So imminent is it that there is nothing between us and that event of events but the shout of command, the voice of the archangel and the shattering sound of the trump. So imminent that there is not the thickness of an eyelash between us and that moment when the door in heaven shall open wide and His voice with all compelling power shall say, “Come up hither.”

Listen to what He says: