"The wounds that a friend causes are trustworthy." The word "wounds" here represents the pain and sadness that a person feels when a friend rebukes or corrects him. (See: [[rc://en/ta/man/jit/figs-metaphor]])
The trustworthiness of a friend's rebuke is spoken of as if the sadness that his rebuke causes is trustworthy. Alternate translation: "Though it causes sadness, a friend's rebuke is trustworthy" (See: [[rc://en/ta/man/jit/figs-metonymy]])
It can be stated clearly that the enemy's kisses are not trustworthy. Alternate translation: "but the enemy's many kisses are not trustworthy" or "but an enemy may try to deceive you by kissing you profusely" or (See: [[rc://en/ta/man/jit/figs-explicit]])