Lyric discussion by insunlight 

just a few slight corrections from someone with a bit more fluency:

think of me the next time you hear the waves' gossip and if they tell you that you only did me harm don't get upset that's what I'm there for (or literally, "I'm there for that")

the sea doesn't know the thread (in the sense of something long and directional) of time which brings us together and separates us long live the high tide and long live the low but especially long live the difference that's why i'm there

leave the boat running forget your morals let yourself go and don't be afraid guys are bastards but maybe not all fill your glass and (drink) to our loves i'm there for that

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