Ephesians 4:30

And grieve not the Holy Spirit of God
Not a believer's own spirit, sanctified by the Holy Ghost, which is grieved by sin; nor the spirit of a good man, that hears our words and sees our actions, and is displeased and troubled at them; but the third person in the Trinity: and this is said of him by an anthropopathy, and supposes something done that is offensive to him; and he may be grieved, not only by unconverted persons, by their stubborn resistance and opposition to the Gospel and means of grace, and by their contempt of his person, office, and grace, but by believers themselves, and who are here spoken to; and which may be done both by their words, lying, angry, and corrupt ones, before cautioned against, ( Ephesians 4:25 Ephesians 4:26 Ephesians 4:29 ) and by their actions, their behaviour towards God, their conversation in the world, and by their carriage to one another, which is suggested in the following verse: also he may be grieved by their thoughts, their vain and sinful thoughts, and that they are no better employed; and especially when they entertain any undervaluing ones of Jesus Christ, whose glorifier he is; and by the unbelief of their hearts, and by their unmindfulness of the things of the Spirit; and when they disregard the rules, dictates, and advice of the Spirit, and make no use of him: and his being grieved appears by his departure from them; which is to be perceived by the darkness of their souls, the prevailings of corruption, the weakness of grace, and their backwardness to duty: and now there are many reasons why he should not be grieved; as because he is God, and the author of the new birth, the implanter and applier of all grace, and the finisher of it; because he is the saints' comforter, their advocate, helper, and strengthener; and their constant companion, who dwells in them, and will remain in them, until death: and it follows,

whereby ye are sealed unto the day of redemption;
of the sealing work of the Spirit, (See Gill on Ephesians 1:13). By "the day of redemption" may be meant, either the day of death, when the saints have a deliverance from the incumbrance of the body; from their present state of exile and banishment; from the body of sin and death; from all sorrows and afflictions; from the reproaches and persecutions of men; from the temptations of Satan; from doubts, fears, and unbelief; and from all fear of death, corporeal, spiritual, and eternal: or the day of the resurrection, when the body will be redeemed from mortality, corruption, weakness, and dishonour; when it will be refined and spiritualized, so that it will not stand in need of natural sustenance; will be endowed with great agility, like that of spirits; and will be subject to the soul, or spirit, and will be suited to spiritual objects; to which may be added, the day of judgment, ( Luke 21:28 ) when Christ shall appear in glory, and his saints with him, and he will put them, soul and body, into the possession of everlasting happiness; which will consist in the vision of Christ, in conformity to him, and in that happy company and conversation that will then be enjoyed, and that delightful employment they will be taken up in: and now the saints being sealed up by the Spirit unto this time, shows the perpetual indwelling of the Spirit in them; and that it will continue even after death, who will give them confidence at the day of judgment; and that it is the Spirit which works up the saints, and makes them meet for glory; and gives them the assurance of it, and therefore they should not be grieved.