Question: "Why Jesus was crucified, what is the truth about resurrection?"
Jesus was crucified to take away the sins of the whole world.
Mat 18:11 For the Son of man (Jesus) is come to save that which was lost.
Rom 5:8 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.
Rom 5:9 Much more then, being now justified by his blood, we shall be saved from wrath through him.
>>What is the truth about resurrection?
Jesus' desciples and many had seen Jesus after resurrection
1 Cor 15:4 and that He was buried, and that He rose again the third day according to the Scriptures,
1 Cor 15:5 and that He was seen by Cephas, then by the twelve.
1 Cor 15:6 After that He was seen by over five hundred brethren at once,
Not only that but many historical evidence prove about Christ's resurrection.