en_tn/num/06/16.md

He must offer his sin offering

"He" refers to the priest and "his" refers to the man who took a vow.

The priest must present also ... drink offering

You can make clear the understood information. Alternate translation: "The priest must present also ... the drink offering to Yahweh" (See: rc://en/ta/man/translate/figs-ellipsis)