John the Apostle
John 12:13BSB·traditional attribution

They took palm branches and went out to meet Him, shouting: “Hosanna!” “Blessed is He who comes in the name of the Lord!” “Blessed is the King of Israel!”

John Calvin Reformed @genevareformer

13. Took branches of palm-trees. The palm was the emblem of victory and peace among the ancients; but they were wont to employ branches of palm-trees, when they bestowed kingly power on any one, or when they humbly supplicated the favor of a conqueror. But those persons appear to have taken into their hands branches of palm-trees, as a token of gladness and rejoicing at receiving a new king.

Matthew Henry Presbyterian @wholebiblehenry

This story of Christ's riding in triumph to Jerusalem is recorded by all the evangelists, as worthy of special remark; and in it we may observe, I. The respect that was paid to our Lord Jesus by the common people, Joh 12:12, Joh 12:13, where we are told, 1.

Commenting on John 12:12-19

John Gill Reformed Baptist @doctorgill

Took branches of palm trees,.... The Ethiopic version adds, "and young shoots from Jerusalem"; these grew in great plenty, on one part of the Mount of Olives, that next to Bethany, from whence that town had its name; for it signifies the house of dates, the fruit of the palm tree; See Gill on Mat 21:17.