There are over 1800 references about the Millennium in the OT and there are over 300 references about the Millennium in the NT.
The word thousand is used approx. 400 times in the old and new testament . But references about the phrase "Millennium" vary from one camp to another.
The Millennium is
signified in the last chapter of the Bible or book of Revelation.
Rev 1:1 The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass; and he sent and signified it by his angel unto his servant John:
Shew...... to give evidence or proof of a thing not seen
Signified...To signify means to "mean." ... When objects are endowed with symbolic meaning, they are said to signify things. A dove
signifies peace, a six-pointed star
signifies Judaism, a frog
signifies fertility, a key
signifies the power of the gospel to loose and bind, a chain
signifies the authority of the gospel to bind. a bottomless pit
signifies the keeping power of the gospel . a thousand years
signifies the last days beginning with the words it is finished, souls of the beheaded
signifies those who have communion with God but have not received the promise their new in corruptible bodies. a hand
signifies the unseen will. a dragon or serpent
signifies the father of lies , thrones
signifies a unseen authority, a seal
signifies the shutting up.
And I saw an angel come down from heaven, having the
key of the
bottomless pit and a
great chain in his
hand.
And he laid hold on the
dragon, that
old serpent, which is
the Devil, and
Satan, and bound him a
thousand years,And cast him into the
bottomless pit, and
shut him up, and set a
seal upon him, that he should deceive the nations no more, till the
thousand years should be fulfilled: and after that he must be loosed a little season.And I saw
thrones, and they sat upon them, and judgment was given unto them: and I saw the
souls of them that were
beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his
mark upon their
foreheads, or in their
hands; and they lived and reigned with Christ a
thousand years. But the
rest of the dead lived not again until the
thousand years were finished. This is the first resurrection. Blessed and holy is he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a
thousand years. And when the
thousand years are expired,
Satan shall be loosed out of his
prison,Rev 20:1-7
Without parables Christ spoke not . Hiding the signified meaning from those who seek after signs of observation.And not signs as as wonders ... the faith principle.