John 1:19 And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who art thou?
20 And he confessed, and denied not; but confessed, I am not the Christ.
21 And they asked him, What then? Art thou Elias? And he saith, I am not. Art thou that prophet? And he answered, No.
22 Then said they unto him, Who art thou? that we may give an answer to them that sent us. What sayest thou of thyself?
23 He said, I am the voice of one crying in the wilderness, Make straight the way of the Lord, as said the prophet Esaias.
24 And they which were sent were of the Pharisees.
25 And they asked him, and said unto him, Why baptizest thou then, if thou be not that Christ, nor Elias, neither that prophet?
26 John answered them, saying, I baptize with water: but there standeth one among you, whom ye know not;
27 He it is, who coming after me is preferred before me, whose shoe's latchet I am not worthy to unloose.
28 These things were done in Bethabara beyond Jordan, where John was baptizing.
29 The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.
30 This is he of whom I said, After me cometh a man which is preferred before me: for he was before me.
31 And I knew him not: but that he should be made manifest to Israel, therefore am I come baptizing with water.
32 And John bare record, saying, I saw the Spirit descending from heaven like a dove, and it abode upon him.
33 And I knew him not: but he that sent me to baptize with water, the same said unto me, Upon whom thou shalt see the Spirit descending, and remaining on him, the same is he which baptizeth with the Holy Ghost.
34 And I saw, and bare record that this is the Son of God.
35 Again the next day after John stood, and two of his disciples;
36 And looking upon Jesus as he walked, he saith, Behold the Lamb of God!
37 And the two disciples heard him speak, and they followed Jesus.
38 Then Jesus turned, and saw them following, and saith unto them, What seek ye? They said unto him, Rabbi, (which is to say, being interpreted, Master,) where dwellest thou?
39 He saith unto them, Come and see. They came and saw where he dwelt, and abode with him that day: for it was about the tenth hour.
40 One of the two which heard John speak, and followed him, was Andrew, Simon Peter's brother.
41 He first findeth his own brother Simon, and saith unto him, We have found the Messias, which is, being interpreted, the Christ.
42 And he brought him to Jesus. And when Jesus beheld him, he said, Thou art Simon the son of Jona: thou shalt be called Cephas, which is by interpretation, A stone.
43 The day following Jesus would go forth into Galilee, and findeth Philip, and saith unto him, Follow me.
44 Now Philip was of Bethsaida, the city of Andrew and Peter.
45 Philip findeth Nathanael, and saith unto him, We have found him, of whom Moses in the law, and the prophets, did write, Jesus of Nazareth, the son of Joseph.
46 And Nathanael said unto him, Can there any good thing come out of Nazareth? Philip saith unto him, Come and see.
47 Jesus saw Nathanael coming to him, and saith of him, Behold an Israelite indeed, in whom is no guile!
48 Nathanael saith unto him, Whence knowest thou me? Jesus answered and said unto him, Before that Philip called thee, when thou wast under the fig tree, I saw thee.
49 Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel.
50 Jesus answered and said unto him, Because I said unto thee, I saw thee under the fig tree, believest thou? thou shalt see greater things than these.
51 And he saith unto him, Verily, verily, I say unto you, Hereafter ye shall see heaven open, and the angels of God ascending and descending upon the Son of man.
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By failing to compare the gospel accounts with the prophecies of the Hebrew Bible, many Christians fail to see how the record of the events of the birth, life and death of Jesus are illuminated by those prophecies.
John the baptist seems to have understood something about the nature of the Messiah that most of his countrymen did not - something about which John the evangelist would later write. The glory of the living Word is grace and truth (see John 1:14) - not the glory of political power John the baptist (and John the evangelist, for that matter) had been taught by the Hebrew rabbis to expect.
Here are some other references from the Hebrew Bible that are relevant to the story of Jesus.
Daniel 9:25 Know therefore and understand, that from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince shall be seven weeks, and threescore and two weeks:...
Isaiah 40:1 Comfort ye, comfort ye my people, saith your God.
2 Speak ye comfortably to Jerusalem, and cry unto her, that her warfare is accomplished, that her iniquity is pardoned: for she hath received of the Lord's hand double for all her sins.
3 The voice of him that crieth in the wilderness, Prepare ye the way of the Lord, make straight in the desert a highway for our God.
4 Every valley shall be exalted, and every mountain and hill shall be made low: and the crooked shall be made straight, and the rough places plain:
5 And the glory of the Lord shall be revealed, and all flesh shall see it together: for the mouth of the Lord hath spoken it.
Isaiah 53:7 He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth.
He who made Adam from the dust of the earth and included one of Adam’s ribs when he made the mother of the human race could just as easily have made “coats of skins” by speaking them into existence. In the Genesis account, Moses didn’t say whether the creator killed animals - or instructed Adam and Eve to kill them - from which to make clothing for our first parents or how much he explained to them about the way animal sacrifices prefigured the sacrifice of the Messiah. Moses did, however, record the promise in Genesis 3:15 that the seed of the serpent would “bruise the heel” of the seed of the woman - which can be understood as a prophecy that, while the Messiah would destroy “that old serpent, called the Devil and Satan” (Rev. 12:9), the conflict would not be without pain for the seed of the woman.
The entire sacrificial system - first mentioned specifically in Genesis 4 and later expanded at the time of the Exodus from Egypt - was an enacted prophecy of the sacrifice of the Messiah.
If the baptist was acquainted with Isaiah 53:7 - which he undoubtedly was - that may explain why he chose to introduce the Messiahship of Jesus using the phrase “Lamb of God”.