1Pet 1, 8-13 Although you have not seen him

(1Pet 1, 8-13) Although you have not seen him

[8] Although you have not seen him you love him; even though you do not see him now yet believe in him, you rejoice with an indescribable and glorious joy, [9] as you attain the goal of (your) faith, the salvation of your souls. [10] Concerning this salvation, prophets who prophesied about the grace that was to be yours searched and investigated it, [11] investigating the time and circumstances that the Spirit of Christ within them indicated when it testified in advance to the sufferings destined for Christ and the glories to follow them. [12] It was revealed to them that they were serving not themselves but you with regard to the things that have now been announced to you by those who preached the good news to you (through) the holy Spirit sent from heaven, things into which angels longed to look. [13] Therefore, gird up the loins of your mind, live soberly, and set your hopes completely on the grace to be brought to you at the revelation of Jesus Christ.

(CCC 713) The Messiah's characteristics are revealed above all in the "Servant songs" (Cf. Isa 42:1-9; Mt 12:18-21; Jn 1:32-34; then cf. Isa 49:1-6; Mt 3:17; Lk 2:32; finally cf. Isa 50:4-10 and Isa 52:13-53:12). These songs proclaim the meaning of Jesus' Passion and show how he will pour out the Holy Spirit to give life to the many: not as an outsider, but by embracing our "form as slave" (Phil 2:7). Taking our death upon himself, he can communicate to us his own Spirit of life. (CCC 715) The prophetic texts that directly concern the sending of the Holy Spirit are oracles by which God speaks to the heart of his people in the language of the promise, with the accents of "love and fidelity" (Cf. Ezek 11:19; 36:25-28; 37:1-14; Jer 31:31-34; and cf. Joel 3:1-5). St. Peter will proclaim their fulfillment on the morning of Pentecost (Cf. Acts 2:17-21). According to these promises, at the "end time" the Lord's Spirit will renew the hearts of men, engraving a new law in them. He will gather and reconcile the scattered and divided peoples; he will transform the first creation, and God will dwell there with men in peace.