In whom you also trusted, after that you heard the word of truth, the gospel of your salvation: in whom also after that you believed…
I. WHAT DOES THE SEALING MEAN? Clearly it is a figurative expression. To be "sealed" by God implies that we are His and loved by Him — that we are in that sense distinguished from the world at large — that His love is free, unmerited, simply a gift of His affection — that it secures us, and keeps us safe forever; and it is in this way that the believer looks up and perceives his blessed state in the sight of God.
II. HOW LONG IS THIS SEALING TO ENDURE? It is not to last forever; but "until the redemption of the purchased possession."
III. WHO ARE THE PARTIES that are thus sealed? The redeemed from among men. Unconverted, ungodly, and worldly men have no part in this.
(H. M. Villiers, M. A.)
Parallel VersesKJV: In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,