As for me

This phrase shows that the writer has stopped talking about one thing and is now about to talk about himself. AT: "But I"

moan

the sound people and animals make when they are in pain

Here "voice" represents either 1) the psalmist or 2) the psalmist's complaints and moans. AT: "he will hear me" or "he will hear my moaning" (See: rc://en/ta/man/translate/figs-synecdoche and rc://en/ta/man/translate/figs-metonymy)

Here "my life" represents the psalmist. AT: "me" (See: rc://en/ta/man/translate/figs-metonymy)

"for many people fought against me"