en_tn_lite_do_not_use/isa/61/10.md

I will greatly rejoice

Possible meanings are 1) "I" refers to the people of God speaking as one person, or 2) "I" refers to on of the people who mourned.

my soul will exult in my God

AT: This points to the close relationship of the person with God. "I will be very happy because of my God" or "I will delight in my God" (See: rc://en/ta/man/translate/figs-synecdoche)

as a bridegroom adorns himself with a turban, and as a bride adorns herself with her jewels

This emphasizes that the speaker is extremely happy, joyful, celebrating. The turban reminds one of the headdress of the priest. (See: rc://en/ta/man/translate/figs-simile)

turban

See how you translated this in Isaiah 61:3.

For as the earth puts forth its sprouting plants, and as the garden makes its planting grow

This is saying the same thing in two ways for emphasis and to show that whatever God says he will do is certainly going to happen, just as seeds always sprout. It can be translated as, "Just as seeds sown in a garden sprout from the soil and grow" (See: rc://en/ta/man/translate/figs-parallelism)