Matthew 26:30 KJV - 30 And when they had sung a hymn, they went out into the mount of Olives.

After Jesus and his Disciples celebrated the final Passover before his Crucifixion, both Matthew and Mark say they sang a hymn as they headed to the Mount of Olives. While none of the Gospels tell us what that hymn was, history tells us it was likely what the Hebrews called the Hallel.

Hallel, a Hebrew word meaning “praise,” is a Jewish prayer of thanksgiving. It comprises Psalms 113–118 and, in Jesus' time, was recited, in whole or in part, during major festivals like Passover and the Feast of Weeks (Shavout), as well as on joyous occasions, to express gratitude to God for kindness and deliverance. To this day, the Hallel serves as a reminder for Jewish people of significant events such as Passover, Shavuot, Sukkot, Hanukkah, and Israeli national holidays. Reciting these Psalms as a hymn serves as a reflection on the Exodus and the miracles that occurred during that time.

While all 6 of these psalms have significance regarding Jewish history before Jesus' Last Supper, Psalm 118 is particularly important regarding the Crucifixion and Resurrection, especially given that it was written 900 years before Jesus' birth.

Take note of the following verses from Psalm 118:
Psalm 118:1
O give thanks unto the LORD; for he is good: because his mercy endureth for ever.
Psalm 118:14
The LORD is my strength and song, and has become my salvation.
Psalm 118:22-23
The stone which the builders refused is become the head stone of the corner. [23] This is the LORD'S doing; it is marvellous in our eyes.

While no one can say for certain that these Psalms are the hymn which Jesus and his disciples sang, it would nonetheless be very appropriate to consider the significance of these Psalms when meditating on Jesus' death, burial, and ultimately his resurrection.