Ephesians 1:13,14
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, you were sealed with that holy Spirit of promise,
Torrey's Topical Textbook—AKJV

Ephesians 4:30
And grieve not the holy Spirit of God, whereby you are sealed to the day of redemption.
Torrey's Topical Textbook—AKJV