Love is so strong that it is like a fire that is so hot that it cannot be put out even with an ocean full of water. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Love never changes and always stays the same so it is like something that not even a powerful flood can move. (See: [[rc://en/ta/man/translate/figs-metaphor]])
This is something that could possibly happen. Alternate translation: "Even if a man ... he would be utterly despised" (See: [[rc://en/ta/man/translate/figs-hypo]])
This can be translated in active form. Alternate translation: "people would completely despise him" or "people would harshly ridicule him" (See: [[rc://en/ta/man/translate/figs-activepassive]])