en_tn/num/18/19.md

All the presented offerings of holy things that the people of Israel offer to me

AT: "All the offerings of holy things that the people of Israel present and offer to me" (See: rc://en/ta/man/translate/figs-activepassive)

a covenant of salt, a binding covenant forever

The two phrases say much the same thing. The first emphasizes the second. AT: "an agreement forever" (See: rc://en/ta/man/translate/figs-parallelism)