en_tn_lite_do_not_use/eph/04/30.md

do not grieve

"do not distress" or "do not upset"

for it is by him that you were sealed for the day of redemption

The Holy Spirit assures believers that God will redeem them. Paul speaks of the Holy Spirit as if he were a mark that God puts on believers to show that he owns them. Alternate translation: "for he is the seal that assures you that God will redeem you on the day of redemption" or "for he is the one who assures you that God will redeem you on the day of redemption" or (See: rc://en/ta/man/translate/figs-metaphor and rc://en/ta/man/translate/figs-activepassive)

the day of redemption

Here redemption is a metaphor for causing people to no longer be affected by sin. The idea in the noun "redemption" can be expressed with a phrase. Alternate translation: "the day when God will redeem his people" or "the day when God will free his people from sin" (See: rc://en/ta/man/translate/figs-metaphor and rc://en/ta/man/translate/figs-abstractnouns)