en_tn_lite_do_not_use/rom/15/15.md

the gift that was given me by God

This gift is Paul's appointment as an apostle despite his persecution of believers prior to his conversion. Paul speaks of his selection as an apostle as if it were a gift that God gave to him. You can translate this in an active form. AT: "the gift God gave me" (See: rc://en/ta/man/translate/figs-metaphor or rc://en/ta/man/translate/figs-activepassive)

the offering of the Gentiles might become acceptable

Paul speaks of his preaching the gospel as if he, as a priest, were making an offering to God. AT: "the Gentiles might please God when they obey him" (See: rc://en/ta/man/translate/figs-metaphor)