Mat 20:17 And Jesus going up to Jerusalem took the twelve disciples apart in the way, and said unto them,
Mat 20:18 Behold, we go up to Jerusalem; and the Son of man shall be betrayed unto the chief priests and unto the scribes, and they shall condemn him to death,
Mat 20:19 And shall deliver him to the Gentiles to mock, and to scourge, and to crucify him: and the third day he shall rise again.
Act 4:25 Who by the mouth of thy servant David hast said, Why did the heathen rage, and the people imagine vain things?
Act 4:26 The kings of the earth stood up, and the rulers were gathered together against the Lord, and against his Christ.
Act 4:27 For of a truth against thy holy child Jesus, whom thou hast anointed, both Herod, and Pontius Pilate, with the Gentiles, and the people of Israel, were gathered together,
Act 4:28 For to do whatsoever thy hand and thy counsel determined before to be done.
The Gentiles and the Jews were against Jesus and wanted Him gone.
The Romans killed Jesus.
Many Jews wanted it.
He was put to death for our sins.
I would not say we killed Jesus but He was killed for our sins.
If it could apply to us that Jesus was killed and we are guilty for it being a sin then it would seem like we would have to repent of it.
But the Bible never mentions it.
Unless when a person confesses Jesus it is forgiven.
Where the world that denies Jesus is guilty.
Mat 23:35 That upon you may come all the righteous blood shed upon the earth, from the blood of righteous Abel unto the blood of Zacharias son of Barachias, whom ye slew between the temple and the altar.
Maybe the world is guilty of the death of Jesus.
But to confess Him that guilt does not come upon you.