A short while ago, with the strong eyes of faith, we beheld Christ ascending, no less clearly than those accounted worthy to be His eye-witnesses. Nor are we less favored than they. “Blessed are they that have not seen, and yet have believed”, says the Lord (Jn. 20:29), referring to those who’ve found assurance through hearing, and see by faith. Recently we saw Christ lifted up from the ground bodily (Acts 1:9). Now, through the Holy Spirit sent by Him to His disciples, we see how far Christ ascended and to what dignity He carried up the nature He assumed from us. Clearly He went up as high as the place from which the Spirit sent by Him descended. He Who spoke through the prophet Joel showed us whence the Spirit comes, saying “I will pour out My Spirit upon all flesh” (Joel 2:28), and to Him David addressed the words, “Thou sendest forth Thy Spirit; they are created: and Thou renewest the face of the earth” (Ps. 104:30). It follows that at His ascension Christ went up to the Father on high, as far as His Fatherly bosom, from which comes the Spirit. Having been shown, even in His human form, to share the Father’s glory, Christ now sent forth the Spirit Who comes from the Father and is sent by Him from Heaven. But when we hear that the Spirit was sent by the Father and the Son, this does not mean that the Spirit has no part in Their greatness, for He is not just sent, but also Himself sends and consents to be sent.
This is clearly shown by Christ’s words spoken through the prophet, “Mine hand hath laid the foundation of the earth and stretched out the heavens, and now the Lord God, and His Spirit, hath sent Me” (cf. Isa. 48:13-16). Again, speaking through the same prophet He says, “The Spirit of the Lord is upon Me; because the Lord hath anointed Me to preach good tidings unto the meek” (Isa. 61:1). The Holy Spirit is not just sent, but Himself sends the Son, Who is sent by the Father. He is therefore shown to be the same as the Father and the Son in nature, power, operation and honor. (Homily 24, 1-2)