isaiah 61:3 To appoint unto them that mourn in Zion, to give unto them beauty for ashes, the oil of joy for mourning, the garment of praise for the spirit of heaviness; that they might be called trees of righteousness, the planting of the LORD, that he might be glorified. - Free Bible Online

      3. To appoint . . . to give--The double verb, with the one and the same accusative, imparts glowing vehemence to the style.
      beauty for ashes--There is a play on the sound and meaning of the Hebrew words, peer, epher, literally, "ornamental headdress" or tiara (Eze 24:17), worn in times of joy, instead of a headdress of "ashes," cast on the head in mourning (2Sa 13:19).
      oil of joy--Perfumed ointment was poured on the guests at joyous feasts (Ps 23:5; 45:7, 8; Am 6:6). On occasions of grief its use was laid aside (2Sa 14:2).
      garment of praise--bright-colored garments, indicative of thankfulness, instead of those that indicate despondency, as sackcloth (Joh 16:20).
      trees of righteousness--Hebrew, terebinth trees; symbolical of men strong in righteousness, instead of being, as heretofore, bowed down as a reed with sin and calamity (Isa 1:29, 30; 42:3; 1Ki 14:15; Ps 1:3; 92:12-14; Jer 17:8).
      planting of . . . Lord--(See on Isa 60:21).
      that he might be glorified-- (Joh 15:8).

JFB.