## for he has handed them over to their sins ##

"it is because God has allowed the power of their sin to control them" or "he punished them with the consequences of their sins."

## But suppose you diligently sought God and presented your request to the Almighty ##

Here the writer expresses the single idea of seeking God in order to present his case using two steps.  (See: [[rc://en/ta/man/translate/figs-parallelism]])