" Behold, I will send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, shall suddenly come to this temple, even the messenger of the covenant, whom ye delight in: behold, he shall come, saith the LORD of hosts.
 But who may abide the day of his coming? and who shall stand when he appeareth? for he is like a refiner's fire, and like fullers' soap:
 And he shall sit as a refiner and purifer of silver: and he shall purify the sons of Levi, and purge them as gold and silver, that they may offer unto the LORD an offering in righteousness." Malachi 3:1-3
" Watch therefore: for ye know not what hour your Lord doth come.
 But know this, that 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.
 Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh.
 Who then is a faithful and wise servant, whom his lord hath made ruler over his household, to give them meat in due season?
 Blessed is that servant, whom his lord when he cometh shall find so doing.
 Verily I say unto you, That he shall make him ruler over all his goods.
 But and if that evil servant shall say in his heart, My lord delayeth his coming;
 And shall begin to smite his fellowservants, and to eat and drink with the drunken;
 The lord of that servant shall come in a day when he looketh not for him, and in an hour that he is not aware of,
 And shall cut him asunder, and appoint him his portion with the hypocrites: there shall be weeping and gnashing of teeth." Matthew 24:42-51