Ps 98:9, Jn 5:22-23, Acts 10:39-42, Acts 17:30-31, 2 Tim 4:1,8, Rev 19:11
In the Old Testament, the psalmist said that God would come to judge the earth. (Psalms 96:13, Psalms 98:9)
Psalms 96:13 Before the Lord: for he cometh, for he cometh to judge the earth: he shall judge the world with righteousness, and the people with his truth.
Psalms 98:9 Before the Lord; for he cometh to judge the earth: with righteousness shall he judge the world, and the people with equity.
God has entrusted the judgment of the world to his Son. (John 5:22-23)
John 5:22 For the Father judgeth no man, but hath committed all judgment unto the Son: 23 That all men should honour the Son, even as they honour the Father. He that honoureth not the Son honoureth not the Father which hath sent him.
Jesus is the Christ sent by God to judge the living and the dead. (Acts 10:39-42, Acts 17:30-31, 2 Timothy 4:1, Rev 19:11)
Acts 10:39 And we are witnesses of all things which he did both in the land of the Jews, and in Jerusalem; whom they slew and hanged on a tree: 40 Him God raised up the third day, and shewed him openly; 41 Not to all the people, but unto witnesses chosen before God, even to us, who did eat and drink with him after he rose from the dead. 42 And he commanded us to preach unto the people, and to testify that it is he which was ordained of God to be the Judge of quick and dead.
Acts 17:30 And the times of this ignorance God winked at; but now commandeth all men every where to repent: 31 Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead.
2 Timothy 4:1 I charge thee therefore before God, and the Lord Jesus Christ, who shall judge the quick and the dead at his appearing and his kingdom;
Rev 19:11 And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war.