sealed
The Holy Spirit is Himself, the seal. In the symbolism of Scripture, a seal signifies:
(1) A finished transaction; (Jeremiah 32:9); (Jeremiah 32:10); (John 17:4); (John 19:30).
(2) Ownership; (Jeremiah 32:11); (Jeremiah 32:12); (2 Timothy 2:19).
(3) Security; (Esther 8:8); (Daniel 6:17); (Ephesians 4:30).