## lift up your voice like a trumpet ##

This means shout loudly. Here "your" refers to Isaiah. (See: [[rc://en/ta/man/translate/figs-simile]] and [[rc://en/ta/man/translate/figs-you]])

## confront my people with their rebellion, and the house of Jacob with their sins ##

This is saying the same thing in two ways for emphasis. Here "my" refers to Yahweh. (See: [[rc://en/ta/man/translate/figs-parallelism]])