The singular works done by the Holy Spirit.
John 16:7 Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send Him unto you.
8 And when He is come, He will reprove the world of sin, and of righteousness, and of judgment:
9 Of sin, because they believe not on Me;
10 Of righteousness, because I go to my Father, and ye see Me no more;
11 Of judgment, because the prince of this world is judged.
More later.