en_tn/luk/23/12.md

Herod and Pilate had become friends with each other that very day

The implied information is that they became friends because Herod appreciated Pilate allowing him to judge Jesus. AT: "Herod and Pilate became friends with each other that very day because Pilate had sent Jesus to Herod for judgment" (See: rc://en/ta/man/translate/figs-explicit)

before this they had been enemies with each other

This information is enclosed in parentheses to show that it is background information. Use a format that your audience would understand. (See: rc://en/ta/man/translate/writing-background)