And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.
Grieve not - a touching condescension to human conceptions. Compare "vexed" (Isaiah 63:10; Psalms 78:40); "fretted me" (Ezekiel 16:43: implying His tender love); and of hardened unbelievers, "resist the Holy Spirit" (Acts 7:51). Believers grieve the Holy Spirit by inconsistencies, such as corrupt or worthless conversation, etc.; implying how far from harmless such 'communications' are: they grieve our "Holy" and dearest Friend. This proves His personality. To warn us the more, the blessing believers receive from Him follows.
Whereby ye are sealed, х en (G1722) ho (G3588) esfragistheete (G4972)] - 'wherein (or 'IN whom') ye were sealed' once for all (aorist). As in Ephesians 1:13, believers are said to be sealed "in Christ," so here, in "the Holy Spirit," who is one with Christ, and reveals Christ in the soul. It is the Father 'BY' whom believers, as well as the Son Himself, were sealed (John 6:27). The Spirit is itself the seal in Ephesians 1:13. Here the Spirit is the element IN which the believer is sealed, His gracious influences being the seal.
Unto - kept safely against the day (Malachi 3:17, margin) of redemption; namely, of the completion of redemption in the deliverance of the body as well as the soul (Luke 21:28; Romans 8:23; Ephesians 1:14).