The myrtle is a very common indigenous shrub all over Palestine. “Instead … of the brier shall come up the myrtle-tree. This will be for the LORD’s renown, for an everlasting sign, which will not be destroyed.” (Isa 55:13). The Feast of Tabernacles was celebrated by the Jews on their return from Babylon.
They were ordered to “go forth unto the mount and fetch olive, pine and myrtle branches, and to make booths.” Neh 8: 15. The Myrtle was a symbol of peace and joy to the Jews. “We have gone throughout the earth and found the whole world at rest and in peace.” Zech 1: 11. Queen Esther’s Hebrew name (Est 2:7) meant myrtle from the Hebrew root word hadac and it was the emblem of justice.
The prophetic symbolism is rich: rest & peace, promised blessing, protection & justice, are all found in Him, Jesus Christ. He who dwells in the shelter of the Most High, will rest in the shadow of the Almighty.
I will say of the LORD, “He is my refuge, and my fortress, my God, in whom I trust.” Ps 91:1-2