What does 2 Kings 5:18 mean?

'But may the Lord forgive me for this one thing: when my master goes into the temple of Rimmon to worship, and I have to go with him and bow down, may the Lord pardon me for that.' 2 Kings 5:18 - Modern Text Bible

(Naaman asks for forgiveness in advance for times he'll have to bow in his king's temple, showing he's trying to be faithful even in a tough situation.)