Christ makes it very clear in the following passages:
John 14:15-18
***15 If you love me, keep my commandments. 16 And I will ask the Father, and he shall give you another Paraclete, that he may abide with you for ever. 17 The spirit of truth, whom the world cannot receive, because it seeth him not, nor knoweth him: but you shall know him; because he shall abide with you, and shall be in you. 18 I will not leave you orphans, I will come to you. ***
John 14:26
26 But the Paraclete, the Holy Ghost, whom the Father will send in my name, he will teach you all things, and bring all things to your mind, whatsoever I shall have said to you.
John 15:26
***26 But when the Paraclete cometh, whom I will send you from the Father, the Spirit of truth, who proceedeth from the Father, he shall give testimony of me. ***
John 16:5
5 But I told you not these things from the beginning, because I was with you. And now I go to him that sent me, and none of you asketh me: Whither goest thou? 6 But because I have spoken these things to you, sorrow hath filled your heart. 7 But I tell you the truth: it is expedient to you that I go: for if I go not, the Paraclete will not come to you; but if I go, I will send him to you. 8 And when he is come, he will convince the world of sin, and of justice, and of judgment. 9 Of sin: because they believed not in me. 10 And of justice: because I go to the Father; and you shall see me no longer. 11 And of judgment: because the prince of this world is already judged. 12 I have yet many things to say to you: but you cannot bear them now. 13 But when he, the Spirit of truth, is come, he will teach you all truth. For he shall not speak of himself; but what things soever he shall hear, he shall speak; and the things that are to come, he shall shew you. 14 He shall glorify me; because he shall receive of mine, and shall shew it to you. 15 All things whatsoever the Father hath, are mine. Therefore I said, that he shall receive of mine, and shew it to you.
I think that is enough!!