This is the most important day for Christians - the day our sin debt was paid - paid in full by our Lord who came to save sinners. Scriptures tell us that after the last supper, they sang & went to the Mount of Olives (in the Garden of Gethsemane), where Jesus prayed with great fervency about what was to come, all while at the same time Judas was leading a group to Jesus where he would then betray Him. (Matthew 27)