Ephesians 1:13

13 In him you also, when you had heard the word of truth, the gospel of your salvation, and had believed in him, were marked with the seal of the promised Holy Spirit;

Ephesians 1:13 In-Context

11 In Christ we have also obtained an inheritance, having been destined according to the purpose of him who accomplishes all things according to his counsel and will,
12 so that we, who were the first to set our hope on Christ, might live for the praise of his glory.
13 In him you also, when you had heard the word of truth, the gospel of your salvation, and had believed in him, were marked with the seal of the promised Holy Spirit;
14 this is the pledge of our inheritance toward redemption as God's own people, to the praise of his glory.
15 I have heard of your faith in the Lord Jesus and your love toward all the saints, and for this reason
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.