en_tn/mat/24/12.md

lawlessness will increase

The abstract noun "lawlessness" can be translated with the phrase "disobeying the law." AT: "disobeying the law will increase" or "people will disobey God's law more and more" (See: rc://en/ta/man/translate/figs-abstractnouns)

the love of many will grow cold

Possible meanings are 1) "many people will no longer love other people" or 2) "many people will no longer love God." (See: rc://en/ta/man/translate/figs-idiom)