Read Ephesians 4:30 Using Other Translations
And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.
And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.
And do not bring sorrow to God’s Holy Spirit by the way you live. Remember, he has identified you as his own, guaranteeing that you will be saved on the day of redemption.