Millions of Christians worldwide today are observing one of the most somber moments of their faith.

Good Friday commemorates the suffering, crucifixion and death of Jesus of Nazareth more than 2,000 years ago in Jerusalem.

At first glance, Good Friday seems like the ultimate misnomer. If Jesus suffered and died on this day, then why is it called “Good” Friday?

On one level, the answer is about the changing meaning of words.

The term “Good” as applied to Good Friday is an Old English expression meaning holy. It’s often called Holy Friday also.

But in another sense, Good Friday is always tied to Easter Sunday, which is a joyful celebration of the resurrection of Jesus. He could not have been resurrected if he had not died first.

The faithful often act out the events of Good Friday by carrying a large wooden cross and crown of thorns symbolic of the suffering of Christ.

In Jerusalem, they follow the Via Dolorosa, or Way of the Cross.

Jesus told his followers, “Whoever wants to be my disciple must deny themselves and take up their cross and follow me.” (Matthew 16:24, New International Version)

The events of Good Friday described in the Bible include the trial of Jesus, the shouts of the crowd to “Crucify him!” even when given a choice to free Jesus or Barabbas, followed by Jesus carrying the cross and being hung on it to die.

See also: What is Maundy Thursday?