How words can lead to war?

so, I've been studying greek mythology and there was a story where a foolish boy that was said to be the most handsome mortal had to choose who was the fairest of three woman gods and he chose the goddess of  love cause he foolishly well wanted what she had to offer love, now let's start with how this happened one god who loved to spark fights had wanted to get her revenge cause she was not invited to a goddess wedding cause no wants a god who sparks rage or fights at such event, so she had gotten a gold apple which she carved in for the fairest  then rolled it on the floor were the three godess were making conversation and they happen to see the apple and read what was carved in, then the fight began until zuess decided that it shall be decided by the boy, so the goddess went down to meet him, and all cause of his choice his brother was killed, in the trojan war, then he had killed the goddess who had the wedding son, and what a shame had it been and that's how words can spark war