Is this qhat we who take the name of Crist call Palm Sunday in Leviticus 23:39?

 39 "Also in the fifteenth day of the seventh month, when ye have gathered in the fruit of the land, ye shall keep a feast unto the Lord seven days: on the first day shall be a sabbath, and on the eighth day shall be a sabbath. 40 And ye shall take you on the first day the boughs of goodly trees, branches of palm trees, and the boughs of thick trees, and willows of the brook; and ye shall rejoice before the Lord your God seven days. 41 And ye shall keep it a feast unto the Lord seven days in the year. It shall be a statute for ever in your generations: ye shall celebrate it in the seventh month."

Were the Jews performing this ritual in John 12:12-13

• "On the next day much people that were come to the feast, when they heard that Jesus was coming to Jerusalem, Took branches of palm trees, and went forth to meet him, and cried, Hosanna: Blessed is the King of Israel that cometh in the name of the Lord."

If so what is this saying who Jesus is?

A Psalm 24

1 The earth is the Lord’s, and the fulness thereof;
the world, and they that dwell therein.
2 For he hath founded it upon the seas,
and established it upon the floods.
3 Who shall ascend into the hill of the Lord?
or who shall stand in his holy place?
4 He that hath clean hands, and a pure heart;
who hath not lifted up his soul unto vanity, nor sworn deceitfully.
5 He shall receive the blessing from the Lord,
and righteousness from the God of his salvation.
6 This is the generation of them that seek him,
that seek thy face, O Jacob. Selah.

7 Lift up your heads, O ye gates;
and be ye lift up, ye everlasting doors;
and the King of glory shall come in.
8 Who is this King of glory?
The Lord strong and mighty,
the Lord mighty in battle.
9 Lift up your heads, O ye gates;
even lift them up, ye everlasting doors;
and the King of glory shall come in.
10 Who is this King of glory?
The Lord of hosts, he is the King of glory. Selah.