en_tn_condensed/isa/35/06.md

the lame man will leap like a deer

Deer can jump far and high. Jumping like a deer is an exaggeration for being able to move about quickly and easily. Alternate translation: "the lame man will jump high" (See: rc://en/ta/man/jit/figs-simile and rc://en/ta/man/jit/figs-hyperbole)

the mute tongue will shout for joy

This refers to people who cannot speak. They are referred to by their "tongues" to emphasize their healing. Alternate translation: "mute people will shout for joy" (See: rc://en/ta/man/jit/figs-synecdoche)

streams in the wilderness

The understood verb may be supplied. Alternate translation: "streams will flow in the wilderness" (See: rc://en/ta/man/jit/figs-ellipsis)