en_tn_lite_do_not_use/psa/018/023.md

I have also been innocent ... I have kept myself from sin

Both of these clauses have similar meanings. The writer repeats these ideas for emphasis. (See: rc://en/ta/man/translate/figs-parallelism)

innocent before him

"innocent according to him"

I have kept myself from sin

"I have not sinned"