Eph 1, 13 You have heard the word of truth

(Eph 1, 13) You have heard the word of truth

[13] In him you also, who have heard the word of truth, the gospel of your salvation, and have believed in him, were sealed with the promised holy Spirit,

(CCC 698) The seal is a symbol close to that of anointing. "The Father has set his seal" on Christ and also seals us in him (Jn 6:27; cf. 2 Cor 1:22; Eph 1:13; 4:30). Because this seal indicates the indelible effect of the anointing with the Holy Spirit in the sacraments of Baptism, Confirmation, and Holy Orders, the image of the seal (sphragis) has been used in some theological traditions to express the indelible "character" imprinted by these three unrepeatable sacraments. (CCC 706) Against all human hope, God promises descendants to Abraham, as the fruit of faith and of the power of the Holy Spirit (Cf. Gen 18:1-15; Lk 1:26-38. 54-55; Jn 1:12-13; Rom 4:16-21). In Abraham's progeny all the nations of the earth will be blessed. This progeny will be Christ himself (Cf. Gen 12:3; Gal 3:16), in whom the outpouring of the Holy Spirit will "gather into one the children of God who are scattered abroad" (Cf. In 11:52). God commits himself by his own solemn oath to giving his beloved Son and "the promised Holy Spirit… [who is] the guarantee of our inheritance until we acquire possession of it" (Eph 1:13-14; cf. Gen 22:17-19; Lk 1:73; Jn 3:16; Rom 8:32; Gal 3:14).