The connecting word **If** indicates a hypothetical conditional relationship. If God sends fire, then it proves that he is real. (See: [[rc://en/ta/man/translate/grammar-connect-condition-hypothetical]])
The connecting word **So** connects the result (the prophets of Baal made the sacrifice but didn’t light a fire), with the reason (Elijah told them to do it that way). (See: [[rc://en/ta/man/translate/grammar-connect-logic-result]])