The Scriptures provide a key identifier or "sign of the Covenant of Messiah" :
Yeremyah 31:33, "After those days, says Yahweh: I will put My Law in their inward parts, and write it in their hearts; (minds), and I will be their Father, and they will be My people."
8451. torah - torah: direction, instruction, law Original Word: תּוֹרָה Part of Speech: Noun Feminine Transliteration: torah
Phonetic Spelling: (to-raw') Short Definition: law
This is one of the most ignored principles concerning "NT" prophecy/truth.
A key point concerning the OP, and I hope I am not viewed as wrong for pointing out falsehood in our modern text:
The most well know forgery in all the Scriptures is: “ ...In heaven, the Father, the Word, and the Holy Ghost, and these three are one. And there are three that bear witness in earth... ”.
Are we at the point where we dont even care what was in the original Scriptures, and just go with forged tradition?
1 Yahchanan (John) 5:6-9, "6 This is He Who came through water and blood: Yahshua Messiah; not by the water only, but by the water and the blood. And it is the Spirit which testifies, because the Spirit is truth. 7 For there are three which testify: 8 The Spirit, the water, and the blood; and these three are of one accord. 9 If we accept the testimony of men, the testimony of Yahweh is greater; for this is the testimony of Yahweh: that He has testified of His Son."
Verses 5:7-8 -- In the King James Version and later renditions of the Latin Vulgate, the received Greek and Latin texts include the words: “ ...In heaven, the Father, the Word, and the Holy Ghost, and these three are one. And there are three that bear witness in earth... ”. This text concerning the heavenly witness is not contained in any authentic Greek manuscript written earlier than the Fifteenth Century of this current era. It does not appear in any of the oldest Greek manuscripts; neither does it even appear in the earliest Latin translations. This text is not cited by any of the Greek or early Latin writers, even when the subject they wrote of would naturally have led them to appeal to its authority. The Emphatic Diaglott by Benjamin Wilson, Page 803, The Jerusalem Bible, New Testament, Page 419. Other scholars and researchers have frankly admitted that these words are a deliberate forgery that was never a part of the original inspired Holy Scriptures.