These two phrases mean basically the same thing and are combined to emphasize the danger of too much alcohol. (See: [[rc://en/ta/man/translate/figs-parallelism]])
Here "strong drink" refers to a person who is drunk with strong drink. AT: "a person who is drunk with strong drink starts fights" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This means the opposite of "wise" which is "foolish." AT: "is foolish" (See: [[rc://en/ta/man/translate/figs-litotes]])
# The fear of a king is like the fear of a young lion that is roaring
This compares how people fear a king's wrath to how they fear a young roaring lion. AT: "The king's wrath makes people as afraid as if they were facing a young lion roaring at them" (See: [[rc://en/ta/man/translate/figs-simile]])
# makes him angry
"makes the king angry"
# forfeits his life
This refers to being killed. "Life" here refers to physical life. AT: "will die" (See: [[rc://en/ta/man/translate/figs-euphemism]])