Hi, R.S. —

Thanks for the question.

Throughout all of Christendom, Good Friday is the day Christians "celebrate" the death of Our Lord Jesus Christ on the Cross. It is one of three days in the Catholic Church that are celebrated as one day and called the Easter Triduum. It extends from Holy Thursday evening to the night before Easter Sunday, and includes Good Friday between those two days.

You said:
Why do some say that it's good to die on Good Friday?

As Christians who have been baptized into the death of our Lord, we hope to rise with him at the end of time to everlasting life if we persevere in holiness. I can see why many would wish to die on the day as the Church has historically celebrated His death on that day and many wish to die on the same day Jesus died, at least according to the Catholic Church who established that day.

During Lent you will heard the phrase, "Oh Happy fall of Adam." Why? Because ironically, without Adam and Eve's fall from grace, Adam representing the head of the family of Eden, there would be no reason for Christ to die for us, so we could partake in divine nature and be son's of God with Him.

When Christ became incarnate and was made man, he recapitulated in himself the long history of mankind and procured for us a "short cut" to salvation, so that what we had lost in Adam, that is, being in the image and likeness of God, we might recover in Christ Jesus.

— St. Irenaeus of Lyons, Adv. haeres. 3, 18, 1

I hope this helps,

Mike