How we know that A man named John was sent from God.?

Answer 1

Read the first chapter of both the Gospels of Luke and John:-

Luke 1

36 And, behold, thy cousin Elisabeth, she hath also conceived a son in her old age: and this is the sixth month with her, who was called barren.

37 For with God nothing shall be impossible.

38 And Mary said, Behold the handmaid of the Lord; be it unto me according to thy word. And the angel departed from her.

39 And Mary arose in those days, and went into the hill country with haste, into a city of Juda;

40 And entered into the house of Zacharias, and saluted Elisabeth.

41 And it came to pass, that, when Elisabeth heard the salutation of Mary, the babe leaped in her womb; and Elisabeth was filled with the Holy Ghost:

42 And she spake out with a loud voice, and said, Blessed art thou among women, and blessed is the fruit of thy womb.

43 And whence is this to me, that the mother of my Lord should come to me?

44 For, lo, as soon as the voice of thy salutation sounded in mine ears, the babe leaped in my womb for joy.

6 There was a man sent from God, whose name was John.

7 The same came for a witness, to bear witness of the Light, that all men through him might believe.

8 He was not that Light, but was sent to bear witness of that Light.

9 That was the true Light, which lighteth every man that cometh into the world.

10 He was in the world, and the world was made by him, and the world knew him not.

11 He came unto his own, and his own received him not.

12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:

13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.

14 And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.

15 John bare witness of him, and cried, saying, This was he of whom I spake, He that cometh after me is preferred before me: for he was before me.

16 And of his fulness have all we received, and grace for grace.

17 For the law was given by Moses, but grace and truth came by Jesus Christ.

18 No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared him.

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.