“Who hath also sealed us, and given the earnest of the Spirit in our hearts.”
King James Version (KJV)
1:22 Who also hath sealed us - Stamping his image on our hearts, thus marking and sealing us as his own property. And given us the earnest of his Spirit - There is a difference between an earnest and a pledge. A pledge is to be restored when the debt is paid; but an earnest is not taken away, but completed. Such an earnest is the Spirit. The first fruits of it we have #Rom 8:23|; and we wait for all the fulness.
2Co 1:22 Sealed us. The seal was anciently the mark of ownership. In Eph 1:13 4:30, it is said that the saints are sealed by the Holy Spirit. They are thus marked as Christ's. So here the sealing is by the "earnest of the Spirit".