en_tn/isa/62/03.md

You will also be a crown of beauty in the hand of Yahweh, and a turban of kingship in the hand of your God

These mean the same thing and are combined for emphasis. They say that Jerusalem will become a royal city under the power and authority of God. Yahweh's hand is a metonym for his power and authority. (See: rc://en/ta/man/jit/figs-parallelism and rc://en/ta/man/jit/figs-metonymy)